115125431 has 4 divisors (see below), whose sum is σ = 115858872. Its totient is φ = 114391992.

The previous prime is 115125403. The next prime is 115125457. The reversal of 115125431 is 134521511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115125431 - 2¹⁴ = 115109047 is a prime.

It is a super-2 number, since 2×115125431² = 26507729725871522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115125397 and 115125406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115121431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366485 + ... + 366798.

It is an arithmetic number, because the mean of its divisors is an integer number (28964718).

Almost surely, 2^115125431 is an apocalyptic number.

115125431 is a deficient number, since it is larger than the sum of its proper divisors (733441).

115125431 is an equidigital number, since it uses as much as digits as its factorization.

115125431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733440.

The product of its digits is 600, while the sum is 23.

The square root of 115125431 is about 10729.6519514847. The cubic root of 115125431 is about 486.4711500127.

Adding to 115125431 its reverse (134521511), we get a palindrome (249646942).

The spelling of 115125431 in words is "one hundred fifteen million, one hundred twenty-five thousand, four hundred thirty-one".