155468531 has 2 divisors, whose sum is σ = 155468532. Its totient is φ = 155468530.

The previous prime is 155468497. The next prime is 155468563. The reversal of 155468531 is 135864551.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155468531 is a prime.

It is a super-2 number, since 2×155468531² = 48340928262595922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (155468231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77734265 + 77734266.

It is an arithmetic number, because the mean of its divisors is an integer number (77734266).

Almost surely, 2^155468531 is an apocalyptic number.

155468531 is a deficient number, since it is larger than the sum of its proper divisors (1).

155468531 is an equidigital number, since it uses as much as digits as its factorization.

155468531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72000, while the sum is 38.

The square root of 155468531 is about 12468.7020575519. The cubic root of 155468531 is about 537.7092386017.

The spelling of 155468531 in words is "one hundred fifty-five million, four hundred sixty-eight thousand, five hundred thirty-one".