122398659 has 6 divisors (see below), whose sum is σ = 176798076. Its totient is φ = 81599100.

The previous prime is 122398651. The next prime is 122398667. The reversal of 122398659 is 956893221.

It is an interprime number because it is at equal distance from previous prime (122398651) and next prime (122398667).

It is not a de Polignac number, because 122398659 - 2³ = 122398651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122398651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6799917 + ... + 6799934.

It is an arithmetic number, because the mean of its divisors is an integer number (29466346).

Almost surely, 2^122398659 is an apocalyptic number.

122398659 is a deficient number, since it is larger than the sum of its proper divisors (54399417).

122398659 is a wasteful number, since it uses less digits than its factorization.

122398659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13599857 (or 13599854 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 122398659 is about 11063.3927436388. The cubic root of 122398659 is about 496.5072028844.

The spelling of 122398659 in words is "one hundred twenty-two million, three hundred ninety-eight thousand, six hundred fifty-nine".