152261531 has 2 divisors, whose sum is σ = 152261532. Its totient is φ = 152261530.

The previous prime is 152261521. The next prime is 152261561. The reversal of 152261531 is 135162251.

152261531 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152261531 is a prime.

It is a super-2 number, since 2×152261531² = 46367147644927922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152261531.

It is not a weakly prime, because it can be changed into another prime (152261521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76130765 + 76130766.

It is an arithmetic number, because the mean of its divisors is an integer number (76130766).

Almost surely, 2^152261531 is an apocalyptic number.

152261531 is a deficient number, since it is larger than the sum of its proper divisors (1).

152261531 is an equidigital number, since it uses as much as digits as its factorization.

152261531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 26.

The square root of 152261531 is about 12339.4299301062. The cubic root of 152261531 is about 533.9862375876.

The spelling of 152261531 in words is "one hundred fifty-two million, two hundred sixty-one thousand, five hundred thirty-one".