115431140546 has 4 divisors (see below), whose sum is σ = 173146710822. Its totient is φ = 57715570272.

The previous prime is 115431140521. The next prime is 115431140567. The reversal of 115431140546 is 645041134511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645041134511 = 1217 ⋅530025583.

It can be written as a sum of positive squares in only one way, i.e., 91957530025 + 23473610521 = 303245^2 + 153211^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28857785135 + ... + 28857785138.

Almost surely, 2^115431140546 is an apocalyptic number.

115431140546 is a deficient number, since it is larger than the sum of its proper divisors (57715570276).

115431140546 is an equidigital number, since it uses as much as digits as its factorization.

115431140546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57715570275.

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 115431140546 in words is "one hundred fifteen billion, four hundred thirty-one million, one hundred forty thousand, five hundred forty-six".