115431506 has 8 divisors (see below), whose sum is σ = 173293644. Its totient is φ = 57666960.

The previous prime is 115431499. The next prime is 115431521. The reversal of 115431506 is 605134511.

It can be written as a sum of positive squares in 2 ways, for example, as 112042225 + 3389281 = 10585^2 + 1841^2 .

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

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, 21365 + ... + 26216.

Almost surely, 2^115431506 is an apocalyptic number.

115431506 is a deficient number, since it is larger than the sum of its proper divisors (57862138).

115431506 is a wasteful number, since it uses less digits than its factorization.

115431506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48796.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 115431506 is about 10743.9055282518. The cubic root of 115431506 is about 486.9018828148.

The spelling of 115431506 in words is "one hundred fifteen million, four hundred thirty-one thousand, five hundred six".