118297492 has 12 divisors (see below), whose sum is σ = 219198420. Its totient is φ = 55669376.

The previous prime is 118297481. The next prime is 118297499. The reversal of 118297492 is 294792811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 80892036 + 37405456 = 8994^2 + 6116^2 .

It is a super-2 number, since 2×118297492² = 27988593226980128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118297499) 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, 869767 + ... + 869902.

It is an arithmetic number, because the mean of its divisors is an integer number (18266535).

Almost surely, 2^118297492 is an apocalyptic number.

It is an amenable number.

118297492 is a deficient number, since it is larger than the sum of its proper divisors (100900928).

118297492 is a wasteful number, since it uses less digits than its factorization.

118297492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739690 (or 1739688 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 118297492 is about 10876.4650507414. The cubic root of 118297492 is about 490.8986590584.

It can be divided in two parts, 11829 and 7492, that added together give a square (19321 = 139²).

The spelling of 118297492 in words is "one hundred eighteen million, two hundred ninety-seven thousand, four hundred ninety-two".