158538089 has 2 divisors, whose sum is σ = 158538090. Its totient is φ = 158538088.

The previous prime is 158538067. The next prime is 158538137. The reversal of 158538089 is 980835851.

158538089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156450064 + 2088025 = 12508^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 158538089 - 2⁸ = 158537833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158538049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79269044 + 79269045.

It is an arithmetic number, because the mean of its divisors is an integer number (79269045).

Almost surely, 2^158538089 is an apocalyptic number.

It is an amenable number.

158538089 is a deficient number, since it is larger than the sum of its proper divisors (1).

158538089 is an equidigital number, since it uses as much as digits as its factorization.

158538089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 158538089 is about 12591.1909285818. The cubic root of 158538089 is about 541.2250297565.

The spelling of 158538089 in words is "one hundred fifty-eight million, five hundred thirty-eight thousand, eighty-nine".