115071631 has 2 divisors, whose sum is σ = 115071632. Its totient is φ = 115071630.

The previous prime is 115071611. The next prime is 115071647. The reversal of 115071631 is 136170511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115071631 - 2⁷ = 115071503 is a prime.

It is a super-2 number, since 2×115071631² = 26482960522000322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115071596 and 115071605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115071611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57535815 + 57535816.

It is an arithmetic number, because the mean of its divisors is an integer number (57535816).

Almost surely, 2^115071631 is an apocalyptic number.

115071631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115071631 is an equidigital number, since it uses as much as digits as its factorization.

115071631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 115071631 is about 10727.1445874473. The cubic root of 115071631 is about 486.3953595593.

The spelling of 115071631 in words is "one hundred fifteen million, seventy-one thousand, six hundred thirty-one".