158645023 has 2 divisors, whose sum is σ = 158645024. Its totient is φ = 158645022.

The previous prime is 158644999. The next prime is 158645033. The reversal of 158645023 is 320546851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158645023 - 2⁹ = 158644511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158645023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158645033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79322511 + 79322512.

It is an arithmetic number, because the mean of its divisors is an integer number (79322512).

Almost surely, 2^158645023 is an apocalyptic number.

158645023 is a deficient number, since it is larger than the sum of its proper divisors (1).

158645023 is an equidigital number, since it uses as much as digits as its factorization.

158645023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 158645023 is about 12595.4365942590. The cubic root of 158645023 is about 541.3466879024.

The spelling of 158645023 in words is "one hundred fifty-eight million, six hundred forty-five thousand, twenty-three".