156940079 has 2 divisors, whose sum is σ = 156940080. Its totient is φ = 156940078.

The previous prime is 156940037. The next prime is 156940093. The reversal of 156940079 is 970049651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156940079 - 2²⁴ = 140162863 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156940099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78470039 + 78470040.

It is an arithmetic number, because the mean of its divisors is an integer number (78470040).

Almost surely, 2^156940079 is an apocalyptic number.

156940079 is a deficient number, since it is larger than the sum of its proper divisors (1).

156940079 is an equidigital number, since it uses as much as digits as its factorization.

156940079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 156940079 is about 12527.5727497389. The cubic root of 156940079 is about 539.4004307872.

The spelling of 156940079 in words is "one hundred fifty-six million, nine hundred forty thousand, seventy-nine".