137265731 has 8 divisors (see below), whose sum is σ = 138858720. Its totient is φ = 135677952.

The previous prime is 137265727. The next prime is 137265743. The reversal of 137265731 is 137562731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137265731 - 2² = 137265727 is a prime.

It is a super-2 number, since 2×137265731² = 37683761813928722, 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 = 137265691 and 137265700.

It is not an unprimeable number, because it can be changed into a prime (137265721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78341 + ... + 80073.

It is an arithmetic number, because the mean of its divisors is an integer number (17357340).

Almost surely, 2^137265731 is an apocalyptic number.

137265731 is a deficient number, since it is larger than the sum of its proper divisors (1592989).

137265731 is a wasteful number, since it uses less digits than its factorization.

137265731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605.

The product of its digits is 26460, while the sum is 35.

The square root of 137265731 is about 11716.0458773427. The cubic root of 137265731 is about 515.8467623312.

The spelling of 137265731 in words is "one hundred thirty-seven million, two hundred sixty-five thousand, seven hundred thirty-one".