495156731 has 4 divisors (see below), whose sum is σ = 499784472. Its totient is φ = 490528992.

The previous prime is 495156709. The next prime is 495156743. The reversal of 495156731 is 137651594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495156731 - 2²² = 490962427 is a prime.

It is a super-2 number, since 2×495156731² = 490360376509212722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (495156791) 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, 2313710 + ... + 2313923.

It is an arithmetic number, because the mean of its divisors is an integer number (124946118).

Almost surely, 2^495156731 is an apocalyptic number.

495156731 is a deficient number, since it is larger than the sum of its proper divisors (4627741).

495156731 is a wasteful number, since it uses less digits than its factorization.

495156731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627740.

The product of its digits is 113400, while the sum is 41.

The square root of 495156731 is about 22252.1174498069. The cubic root of 495156731 is about 791.1294697141.

The spelling of 495156731 in words is "four hundred ninety-five million, one hundred fifty-six thousand, seven hundred thirty-one".