115725031 has 2 divisors, whose sum is σ = 115725032. Its totient is φ = 115725030.

The previous prime is 115725017. The next prime is 115725047. The reversal of 115725031 is 130527511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115725031 - 2¹⁵ = 115692263 is a prime.

It is a super-2 number, since 2×115725031² = 26784565599901922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115724987 and 115725005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115725091) 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, 57862515 + 57862516.

It is an arithmetic number, because the mean of its divisors is an integer number (57862516).

Almost surely, 2^115725031 is an apocalyptic number.

115725031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115725031 is an equidigital number, since it uses as much as digits as its factorization.

115725031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 115725031 is about 10757.5569252503. The cubic root of 115725031 is about 487.3142396354.

The spelling of 115725031 in words is "one hundred fifteen million, seven hundred twenty-five thousand, thirty-one".