115434531 has 8 divisors (see below), whose sum is σ = 171014160. Its totient is φ = 76956336.

The previous prime is 115434523. The next prime is 115434533. The reversal of 115434531 is 135434511.

It is a happy number.

It is not a de Polignac number, because 115434531 - 2³ = 115434523 is a prime.

It is a super-2 number, since 2×115434531² = 26650261894379922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4275353 = 115434531 / (1 + 1 + 5 + 4 + 3 + 4 + 5 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 115434495 and 115434504.

It is not an unprimeable number, because it can be changed into a prime (115434533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2137650 + ... + 2137703.

It is an arithmetic number, because the mean of its divisors is an integer number (21376770).

Almost surely, 2^115434531 is an apocalyptic number.

115434531 is a deficient number, since it is larger than the sum of its proper divisors (55579629).

115434531 is an equidigital number, since it uses as much as digits as its factorization.

115434531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4275362 (or 4275356 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 115434531 is about 10744.0463048146. The cubic root of 115434531 is about 486.9061360307.

The spelling of 115434531 in words is "one hundred fifteen million, four hundred thirty-four thousand, five hundred thirty-one".