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133114431 = 344371477
BaseRepresentation
bin1111110111100…
…10101000111111
3100021110220200010
413323302220333
5233034130211
621113034303
73204311502
oct773625077
9307426603
10133114431
116915992a
12386b5993
1321769248
1413971139
15ba464a6
hex7ef2a3f

133114431 has 4 divisors (see below), whose sum is σ = 177485912. Its totient is φ = 88742952.

The previous prime is 133114411. The next prime is 133114441. The reversal of 133114431 is 134411331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134411331 = 344803777.

It is not a de Polignac number, because 133114431 - 217 = 132983359 is a prime.

It is a super-2 number, since 2×1331144312 = 35438903480907522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133114398 and 133114407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133114411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22185736 + ... + 22185741.

It is an arithmetic number, because the mean of its divisors is an integer number (44371478).

Almost surely, 2133114431 is an apocalyptic number.

133114431 is a deficient number, since it is larger than the sum of its proper divisors (44371481).

133114431 is an equidigital number, since it uses as much as digits as its factorization.

133114431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44371480.

The product of its digits is 432, while the sum is 21.

The square root of 133114431 is about 11537.5227410393. The cubic root of 133114431 is about 510.5932235839.

Adding to 133114431 its reverse (134411331), we get a palindrome (267525762).

The spelling of 133114431 in words is "one hundred thirty-three million, one hundred fourteen thousand, four hundred thirty-one".

Divisors: 1 3 44371477 133114431