115420631 has 2 divisors, whose sum is σ = 115420632. Its totient is φ = 115420630.

The previous prime is 115420621. The next prime is 115420639. The reversal of 115420631 is 136024511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115420631 - 2⁶ = 115420567 is a prime.

It is a super-2 number, since 2×115420631² = 26643844120876322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115420597 and 115420606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115420639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57710315 + 57710316.

It is an arithmetic number, because the mean of its divisors is an integer number (57710316).

Almost surely, 2^115420631 is an apocalyptic number.

115420631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115420631 is an equidigital number, since it uses as much as digits as its factorization.

115420631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 115420631 is about 10743.3994154551. The cubic root of 115420631 is about 486.8865917143.

The spelling of 115420631 in words is "one hundred fifteen million, four hundred twenty thousand, six hundred thirty-one".