158966513 has 2 divisors, whose sum is σ = 158966514. Its totient is φ = 158966512.

The previous prime is 158966503. The next prime is 158966519. The reversal of 158966513 is 315669851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104693824 + 54272689 = 10232^2 + 7367^2 .

It is a cyclic number.

It is not a de Polignac number, because 158966513 - 2¹⁸ = 158704369 is a prime.

It is not a weakly prime, because it can be changed into another prime (158966519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79483256 + 79483257.

It is an arithmetic number, because the mean of its divisors is an integer number (79483257).

Almost surely, 2^158966513 is an apocalyptic number.

It is an amenable number.

158966513 is a deficient number, since it is larger than the sum of its proper divisors (1).

158966513 is an equidigital number, since it uses as much as digits as its factorization.

158966513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 44.

The square root of 158966513 is about 12608.1922970742. The cubic root of 158966513 is about 541.7121161496.

The spelling of 158966513 in words is "one hundred fifty-eight million, nine hundred sixty-six thousand, five hundred thirteen".