158074139 has 2 divisors, whose sum is σ = 158074140. Its totient is φ = 158074138.

The previous prime is 158074123. The next prime is 158074151. The reversal of 158074139 is 931470851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158074139 - 2⁴ = 158074123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (158074739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79037069 + 79037070.

It is an arithmetic number, because the mean of its divisors is an integer number (79037070).

Almost surely, 2^158074139 is an apocalyptic number.

158074139 is a deficient number, since it is larger than the sum of its proper divisors (1).

158074139 is an equidigital number, since it uses as much as digits as its factorization.

158074139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 158074139 is about 12572.7538351787. The cubic root of 158074139 is about 540.6965622311.

The spelling of 158074139 in words is "one hundred fifty-eight million, seventy-four thousand, one hundred thirty-nine".