115201631 has 2 divisors, whose sum is σ = 115201632. Its totient is φ = 115201630.

The previous prime is 115201621. The next prime is 115201633. The reversal of 115201631 is 136102511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115201631 - 2¹⁰ = 115200607 is a prime.

It is a super-2 number, since 2×115201631² = 26542831570120322, which contains 22 as substring.

Together with 115201633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115201633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57600815 + 57600816.

It is an arithmetic number, because the mean of its divisors is an integer number (57600816).

Almost surely, 2^115201631 is an apocalyptic number.

115201631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115201631 is an equidigital number, since it uses as much as digits as its factorization.

115201631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 115201631 is about 10733.2022714565. The cubic root of 115201631 is about 486.5784559479.

The spelling of 115201631 in words is "one hundred fifteen million, two hundred one thousand, six hundred thirty-one".