158557967 has 4 divisors (see below), whose sum is σ = 158817240. Its totient is φ = 158298696.

The previous prime is 158557961. The next prime is 158557969. The reversal of 158557967 is 769755851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 158557967 - 2⁴ = 158557951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158557961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128717 + ... + 129942.

It is an arithmetic number, because the mean of its divisors is an integer number (39704310).

Almost surely, 2^158557967 is an apocalyptic number.

158557967 is a deficient number, since it is larger than the sum of its proper divisors (259273).

158557967 is an equidigital number, since it uses as much as digits as its factorization.

158557967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259272.

The product of its digits is 2646000, while the sum is 53.

The square root of 158557967 is about 12591.9802652323. The cubic root of 158557967 is about 541.2476489719.

The spelling of 158557967 in words is "one hundred fifty-eight million, five hundred fifty-seven thousand, nine hundred sixty-seven".