122872089 has 4 divisors (see below), whose sum is σ = 163829456. Its totient is φ = 81914724.

The previous prime is 122872033. The next prime is 122872093. The reversal of 122872089 is 980278221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 122872089 - 2⁹ = 122871577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122872289) 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 in 3 ways as a sum of consecutive naturals, for example, 20478679 + ... + 20478684.

It is an arithmetic number, because the mean of its divisors is an integer number (40957364).

Almost surely, 2^122872089 is an apocalyptic number.

It is an amenable number.

122872089 is a deficient number, since it is larger than the sum of its proper divisors (40957367).

122872089 is an equidigital number, since it uses as much as digits as its factorization.

122872089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40957366.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 122872089 is about 11084.7683331678. The cubic root of 122872089 is about 497.1465317495.

The spelling of 122872089 in words is "one hundred twenty-two million, eight hundred seventy-two thousand, eighty-nine".