158588891 has 2 divisors, whose sum is σ = 158588892. Its totient is φ = 158588890.

The previous prime is 158588863. The next prime is 158588893. The reversal of 158588891 is 198885851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158588891 - 2²² = 154394587 is a prime.

Together with 158588893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158588893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79294445 + 79294446.

It is an arithmetic number, because the mean of its divisors is an integer number (79294446).

Almost surely, 2^158588891 is an apocalyptic number.

158588891 is a deficient number, since it is larger than the sum of its proper divisors (1).

158588891 is an equidigital number, since it uses as much as digits as its factorization.

158588891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 921600, while the sum is 53.

The square root of 158588891 is about 12593.2081297817. The cubic root of 158588891 is about 541.2828336945.

The spelling of 158588891 in words is "one hundred fifty-eight million, five hundred eighty-eight thousand, eight hundred ninety-one".