152856917 has 2 divisors, whose sum is σ = 152856918. Its totient is φ = 152856916.

The previous prime is 152856889. The next prime is 152856923. The reversal of 152856917 is 719658251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143376676 + 9480241 = 11974^2 + 3079^2 .

It is a cyclic number.

It is not a de Polignac number, because 152856917 - 2¹⁸ = 152594773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152856967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76428458 + 76428459.

It is an arithmetic number, because the mean of its divisors is an integer number (76428459).

Almost surely, 2^152856917 is an apocalyptic number.

It is an amenable number.

152856917 is a deficient number, since it is larger than the sum of its proper divisors (1).

152856917 is an equidigital number, since it uses as much as digits as its factorization.

152856917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151200, while the sum is 44.

The square root of 152856917 is about 12363.5317365225. The cubic root of 152856917 is about 534.6813451646.

The spelling of 152856917 in words is "one hundred fifty-two million, eight hundred fifty-six thousand, nine hundred seventeen".