156045979 has 2 divisors, whose sum is σ = 156045980. Its totient is φ = 156045978.

The previous prime is 156045949. The next prime is 156046019. The reversal of 156045979 is 979540651.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 156045979 - 2¹¹ = 156043931 is a prime.

It is not a weakly prime, because it can be changed into another prime (156045919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78022989 + 78022990.

It is an arithmetic number, because the mean of its divisors is an integer number (78022990).

Almost surely, 2^156045979 is an apocalyptic number.

156045979 is a deficient number, since it is larger than the sum of its proper divisors (1).

156045979 is an equidigital number, since it uses as much as digits as its factorization.

156045979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 340200, while the sum is 46.

The square root of 156045979 is about 12491.8364942870. The cubic root of 156045979 is about 538.3741437770.

The spelling of 156045979 in words is "one hundred fifty-six million, forty-five thousand, nine hundred seventy-nine".