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132711431 = 544124391
BaseRepresentation
bin1111110100100…
…00010000000111
3100020201102212012
413322100100013
5232433231211
621100244435
73201012536
oct772202007
9306642765
10132711431
1168a04076
123854071b
1321657998
14138a831d
15b9b6d8b
hex7e90407

132711431 has 4 divisors (see below), whose sum is σ = 132741264. Its totient is φ = 132681600.

The previous prime is 132711427. The next prime is 132711433. The reversal of 132711431 is 134117231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134117231 = 612121911.

It is a cyclic number.

It is not a de Polignac number, because 132711431 - 22 = 132711427 is a prime.

It is a super-2 number, since 2×1327114312 = 35224647836135522, 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 = 132711397 and 132711406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132711433) 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, 6755 + ... + 17636.

It is an arithmetic number, because the mean of its divisors is an integer number (33185316).

Almost surely, 2132711431 is an apocalyptic number.

132711431 is a deficient number, since it is larger than the sum of its proper divisors (29833).

132711431 is an equidigital number, since it uses as much as digits as its factorization.

132711431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29832.

The product of its digits is 504, while the sum is 23.

The square root of 132711431 is about 11520.0447481770. The cubic root of 132711431 is about 510.0774340966.

Adding to 132711431 its reverse (134117231), we get a palindrome (266828662).

The spelling of 132711431 in words is "one hundred thirty-two million, seven hundred eleven thousand, four hundred thirty-one".

Divisors: 1 5441 24391 132711431