156364139 has 2 divisors, whose sum is σ = 156364140. Its totient is φ = 156364138.

The previous prime is 156364133. The next prime is 156364141. The reversal of 156364139 is 931463651.

It is a strong prime.

It is an emirp because it is prime and its reverse (931463651) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 156364139 - 2⁴ = 156364123 is a prime.

It is a super-2 number, since 2×156364139² = 48899487930422642, which contains 22 as substring.

Together with 156364141, 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 (156364133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78182069 + 78182070.

It is an arithmetic number, because the mean of its divisors is an integer number (78182070).

Almost surely, 2^156364139 is an apocalyptic number.

156364139 is a deficient number, since it is larger than the sum of its proper divisors (1).

156364139 is an equidigital number, since it uses as much as digits as its factorization.

156364139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 38.

The square root of 156364139 is about 12504.5647265309. The cubic root of 156364139 is about 538.7397899311.

The spelling of 156364139 in words is "one hundred fifty-six million, three hundred sixty-four thousand, one hundred thirty-nine".