115857492 has 12 divisors (see below), whose sum is σ = 270334176. Its totient is φ = 38619160.

The previous prime is 115857487. The next prime is 115857551. The reversal of 115857492 is 294758511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827384 + ... + 4827407.

It is an arithmetic number, because the mean of its divisors is an integer number (22527848).

Almost surely, 2^115857492 is an apocalyptic number.

115857492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115857492 is an abundant number, since it is smaller than the sum of its proper divisors (154476684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115857492 is a wasteful number, since it uses less digits than its factorization.

115857492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9654798 (or 9654796 counting only the distinct ones).

The product of its digits is 100800, while the sum is 42.

The square root of 115857492 is about 10763.7118133105. The cubic root of 115857492 is about 487.5000983563.

The spelling of 115857492 in words is "one hundred fifteen million, eight hundred fifty-seven thousand, four hundred ninety-two".