122154428 has 24 divisors (see below), whose sum is σ = 235616304. Its totient is φ = 54950400.

The previous prime is 122154419. The next prime is 122154481. The reversal of 122154428 is 824451221.

It is a self number, because there is not a number n which added to its sum of digits gives 122154428.

It is a congruent 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, 10043 + ... + 18578.

It is an arithmetic number, because the mean of its divisors is an integer number (9817346).

Almost surely, 2^122154428 is an apocalyptic number.

It is an amenable number.

122154428 is a deficient number, since it is larger than the sum of its proper divisors (113461876).

122154428 is a wasteful number, since it uses less digits than its factorization.

122154428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28733 (or 28731 counting only the distinct ones).

The product of its digits is 5120, while the sum is 29.

The square root of 122154428 is about 11052.3494334915. The cubic root of 122154428 is about 496.1767439404.

The spelling of 122154428 in words is "one hundred twenty-two million, one hundred fifty-four thousand, four hundred twenty-eight".