151215601631 has 2 divisors, whose sum is σ = 151215601632. Its totient is φ = 151215601630.

The previous prime is 151215601619. The next prime is 151215601679. The reversal of 151215601631 is 136106512151.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 151215601631 - 2³⁰ = 150141859807 is a prime.

It is a super-2 number, since 2×151215601631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151215601531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75607800815 + 75607800816.

It is an arithmetic number, because the mean of its divisors is an integer number (75607800816).

Almost surely, 2^151215601631 is an apocalyptic number.

151215601631 is a deficient number, since it is larger than the sum of its proper divisors (1).

151215601631 is an equidigital number, since it uses as much as digits as its factorization.

151215601631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 151215601631 in words is "one hundred fifty-one billion, two hundred fifteen million, six hundred one thousand, six hundred thirty-one".