152668631 has 2 divisors, whose sum is σ = 152668632. Its totient is φ = 152668630.

The previous prime is 152668627. The next prime is 152668661. The reversal of 152668631 is 136866251.

152668631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (136866251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152668631 - 2² = 152668627 is a prime.

It is a super-2 number, since 2×152668631² = 46615421782828322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152668661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76334315 + 76334316.

It is an arithmetic number, because the mean of its divisors is an integer number (76334316).

Almost surely, 2^152668631 is an apocalyptic number.

152668631 is a deficient number, since it is larger than the sum of its proper divisors (1).

152668631 is an equidigital number, since it uses as much as digits as its factorization.

152668631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 152668631 is about 12355.9148184179. The cubic root of 152668631 is about 534.4617184756.

The spelling of 152668631 in words is "one hundred fifty-two million, six hundred sixty-eight thousand, six hundred thirty-one".