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133330001 = 719047143
BaseRepresentation
bin1111111001001…
…11010001010001
3100021212212101012
413330213101101
5233113030001
621121420305
73206200130
oct774472121
9307785335
10133330001
1169296892
123879a695
13218133bc
14139c9917
15ba8a2bb
hex7f27451

133330001 has 4 divisors (see below), whose sum is σ = 152377152. Its totient is φ = 114282852.

The previous prime is 133329967. The next prime is 133330003. The reversal of 133330001 is 100033331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100033331 = 752313297.

It is a cyclic number.

It is not a de Polignac number, because 133330001 - 214 = 133313617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133330003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9523565 + ... + 9523578.

It is an arithmetic number, because the mean of its divisors is an integer number (38094288).

Almost surely, 2133330001 is an apocalyptic number.

It is an amenable number.

133330001 is a deficient number, since it is larger than the sum of its proper divisors (19047151).

133330001 is an equidigital number, since it uses as much as digits as its factorization.

133330001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19047150.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 133330001 is about 11546.8610886249. The cubic root of 133330001 is about 510.8686988961.

Adding to 133330001 its reverse (100033331), we get a palindrome (233363332).

The spelling of 133330001 in words is "one hundred thirty-three million, three hundred thirty thousand, one".

Divisors: 1 7 19047143 133330001