156872879 has 2 divisors, whose sum is σ = 156872880. Its totient is φ = 156872878.

The previous prime is 156872851. The next prime is 156872899. The reversal of 156872879 is 978278651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 156872879 - 2⁸ = 156872623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 156872879.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156872899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78436439 + 78436440.

It is an arithmetic number, because the mean of its divisors is an integer number (78436440).

Almost surely, 2^156872879 is an apocalyptic number.

156872879 is a deficient number, since it is larger than the sum of its proper divisors (1).

156872879 is an equidigital number, since it uses as much as digits as its factorization.

156872879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 53.

The square root of 156872879 is about 12524.8903787618. The cubic root of 156872879 is about 539.3234313702.

It can be divided in two parts, 156872 and 879, that added together give a palindrome (157751).

The spelling of 156872879 in words is "one hundred fifty-six million, eight hundred seventy-two thousand, eight hundred seventy-nine".