115151515631 has 2 divisors, whose sum is σ = 115151515632. Its totient is φ = 115151515630.

The previous prime is 115151515597. The next prime is 115151515637. The reversal of 115151515631 is 136515151511.

It is a strong prime.

It is an emirp because it is prime and its reverse (136515151511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115151515631 - 2³⁴ = 97971646447 is a prime.

It is a super-2 number, since 2×115151515631² (a number of 23 digits) 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 = 115151515591 and 115151515600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115151515637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57575757815 + 57575757816.

It is an arithmetic number, because the mean of its divisors is an integer number (57575757816).

Almost surely, 2^115151515631 is an apocalyptic number.

115151515631 is a deficient number, since it is larger than the sum of its proper divisors (1).

115151515631 is an equidigital number, since it uses as much as digits as its factorization.

115151515631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11250, while the sum is 35.

The spelling of 115151515631 in words is "one hundred fifteen billion, one hundred fifty-one million, five hundred fifteen thousand, six hundred thirty-one".