158106139 has 2 divisors, whose sum is σ = 158106140. Its totient is φ = 158106138.

The previous prime is 158106079. The next prime is 158106149. The reversal of 158106139 is 931601851.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 158106139 - 2¹¹ = 158104091 is a prime.

It is not a weakly prime, because it can be changed into another prime (158106149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79053069 + 79053070.

It is an arithmetic number, because the mean of its divisors is an integer number (79053070).

Almost surely, 2^158106139 is an apocalyptic number.

158106139 is a deficient number, since it is larger than the sum of its proper divisors (1).

158106139 is an equidigital number, since it uses as much as digits as its factorization.

158106139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 158106139 is about 12574.0263638979. The cubic root of 158106139 is about 540.7330453706.

The spelling of 158106139 in words is "one hundred fifty-eight million, one hundred six thousand, one hundred thirty-nine".