158620139 has 2 divisors, whose sum is σ = 158620140. Its totient is φ = 158620138.

The previous prime is 158620097. The next prime is 158620141. The reversal of 158620139 is 931026851.

It is a strong prime.

It is an emirp because it is prime and its reverse (931026851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158620139 - 2¹⁶ = 158554603 is a prime.

Together with 158620141, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 158620099 and 158620108.

It is not a weakly prime, because it can be changed into another prime (158620199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79310069 + 79310070.

It is an arithmetic number, because the mean of its divisors is an integer number (79310070).

Almost surely, 2^158620139 is an apocalyptic number.

158620139 is a deficient number, since it is larger than the sum of its proper divisors (1).

158620139 is an equidigital number, since it uses as much as digits as its factorization.

158620139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 158620139 is about 12594.4487374398. The cubic root of 158620139 is about 541.3183824124.

The spelling of 158620139 in words is "one hundred fifty-eight million, six hundred twenty thousand, one hundred thirty-nine".