158016553 has 2 divisors, whose sum is σ = 158016554. Its totient is φ = 158016552.

The previous prime is 158016533. The next prime is 158016557. The reversal of 158016553 is 355610851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136142224 + 21874329 = 11668^2 + 4677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158016553 is a prime.

It is not a weakly prime, because it can be changed into another prime (158016557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79008276 + 79008277.

It is an arithmetic number, because the mean of its divisors is an integer number (79008277).

Almost surely, 2^158016553 is an apocalyptic number.

It is an amenable number.

158016553 is a deficient number, since it is larger than the sum of its proper divisors (1).

158016553 is an equidigital number, since it uses as much as digits as its factorization.

158016553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 158016553 is about 12570.4635157181. The cubic root of 158016553 is about 540.6308961367.

The spelling of 158016553 in words is "one hundred fifty-eight million, sixteen thousand, five hundred fifty-three".