122185915 has 8 divisors (see below), whose sum is σ = 146706048. Its totient is φ = 97693440.

The previous prime is 122185909. The next prime is 122185939. The reversal of 122185915 is 519581221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122185915 - 2³ = 122185907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4534 + ... + 16276.

It is an arithmetic number, because the mean of its divisors is an integer number (18338256).

Almost surely, 2^122185915 is an apocalyptic number.

122185915 is a deficient number, since it is larger than the sum of its proper divisors (24520133).

122185915 is a wasteful number, since it uses less digits than its factorization.

122185915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13829.

The product of its digits is 7200, while the sum is 34.

The square root of 122185915 is about 11053.7737899778. The cubic root of 122185915 is about 496.2193724264.

The spelling of 122185915 in words is "one hundred twenty-two million, one hundred eighty-five thousand, nine hundred fifteen".