157533889 has 2 divisors, whose sum is σ = 157533890. Its totient is φ = 157533888.

The previous prime is 157533881. The next prime is 157533899. The reversal of 157533889 is 988335751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139428864 + 18105025 = 11808^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 157533889 - 2³ = 157533881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157533881) 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, 78766944 + 78766945.

It is an arithmetic number, because the mean of its divisors is an integer number (78766945).

Almost surely, 2^157533889 is an apocalyptic number.

It is an amenable number.

157533889 is a deficient number, since it is larger than the sum of its proper divisors (1).

157533889 is an equidigital number, since it uses as much as digits as its factorization.

157533889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 49.

The square root of 157533889 is about 12551.2504954686. The cubic root of 157533889 is about 540.0798795870.

The spelling of 157533889 in words is "one hundred fifty-seven million, five hundred thirty-three thousand, eight hundred eighty-nine".