122872715 has 32 divisors (see below), whose sum is σ = 181547520. Its totient is φ = 77946624.

The previous prime is 122872669. The next prime is 122872721. The reversal of 122872715 is 517278221.

122872715 = T₂₆₆ + T₂₆₇ + ... + T₉₁₀.

It is a de Polignac number, because none of the positive numbers 2^k-122872715 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26447 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (5673360).

Almost surely, 2^122872715 is an apocalyptic number.

122872715 is a deficient number, since it is larger than the sum of its proper divisors (58674805).

122872715 is a wasteful number, since it uses less digits than its factorization.

122872715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371.

The product of its digits is 15680, while the sum is 35.

The square root of 122872715 is about 11084.7965700774. The cubic root of 122872715 is about 497.1473760237.

The spelling of 122872715 in words is "one hundred twenty-two million, eight hundred seventy-two thousand, seven hundred fifteen".