115251431 has 2 divisors, whose sum is σ = 115251432. Its totient is φ = 115251430.

The previous prime is 115251427. The next prime is 115251491. The reversal of 115251431 is 134152511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115251431 - 2² = 115251427 is a prime.

It is a super-2 number, since 2×115251431² = 26565784695095522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 115251397 and 115251406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115251401) 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 as a sum of consecutive naturals, namely, 57625715 + 57625716.

It is an arithmetic number, because the mean of its divisors is an integer number (57625716).

Almost surely, 2^115251431 is an apocalyptic number.

115251431 is a deficient number, since it is larger than the sum of its proper divisors (1).

115251431 is an equidigital number, since it uses as much as digits as its factorization.

115251431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 115251431 is about 10735.5219248996. The cubic root of 115251431 is about 486.6485594585.

The spelling of 115251431 in words is "one hundred fifteen million, two hundred fifty-one thousand, four hundred thirty-one".