115432531 has 2 divisors, whose sum is σ = 115432532. Its totient is φ = 115432530.

The previous prime is 115432519. The next prime is 115432549. The reversal of 115432531 is 135234511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115432531 - 2⁹ = 115432019 is a prime.

It is a super-2 number, since 2×115432531² = 26649338426131922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115432496 and 115432505.

It is not a weakly prime, because it can be changed into another prime (115432631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57716265 + 57716266.

It is an arithmetic number, because the mean of its divisors is an integer number (57716266).

Almost surely, 2^115432531 is an apocalyptic number.

115432531 is a deficient number, since it is larger than the sum of its proper divisors (1).

115432531 is an equidigital number, since it uses as much as digits as its factorization.

115432531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 25.

The square root of 115432531 is about 10743.9532296078. The cubic root of 115432531 is about 486.9033239955.

The spelling of 115432531 in words is "one hundred fifteen million, four hundred thirty-two thousand, five hundred thirty-one".