158955523 has 2 divisors, whose sum is σ = 158955524. Its totient is φ = 158955522.

The previous prime is 158955497. The next prime is 158955623. The reversal of 158955523 is 325559851.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158955523 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 158955523.

It is not a weakly prime, because it can be changed into another prime (158955023) 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, 79477761 + 79477762.

It is an arithmetic number, because the mean of its divisors is an integer number (79477762).

Almost surely, 2^158955523 is an apocalyptic number.

158955523 is a deficient number, since it is larger than the sum of its proper divisors (1).

158955523 is an equidigital number, since it uses as much as digits as its factorization.

158955523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 43.

The square root of 158955523 is about 12607.7564617976. The cubic root of 158955523 is about 541.6996322764.

The spelling of 158955523 in words is "one hundred fifty-eight million, nine hundred fifty-five thousand, five hundred twenty-three".