118252731 has 12 divisors (see below), whose sum is σ = 167491832. Its totient is φ = 74197248.

The previous prime is 118252727. The next prime is 118252753. The reversal of 118252731 is 137252811.

It is not a de Polignac number, because 118252731 - 2² = 118252727 is a prime.

It is a super-2 number, since 2×118252731² = 27967416777916722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118252711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67330 + ... + 69063.

Almost surely, 2^118252731 is an apocalyptic number.

118252731 is a deficient number, since it is larger than the sum of its proper divisors (49239101).

118252731 is a wasteful number, since it uses less digits than its factorization.

118252731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136430 (or 136413 counting only the distinct ones).

The product of its digits is 3360, while the sum is 30.

The square root of 118252731 is about 10874.4071562545. The cubic root of 118252731 is about 490.8367363964.

The spelling of 118252731 in words is "one hundred eighteen million, two hundred fifty-two thousand, seven hundred thirty-one".