122654128 has 20 divisors (see below), whose sum is σ = 237875400. Its totient is φ = 61266944.

The previous prime is 122654123. The next prime is 122654141. The reversal of 122654128 is 821456221.

It is a self number, because there is not a number n which added to its sum of digits gives 122654128.

It is not an unprimeable number, because it can be changed into a prime (122654123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16323 + ... + 22621.

It is an arithmetic number, because the mean of its divisors is an integer number (11893770).

Almost surely, 2^122654128 is an apocalyptic number.

It is an amenable number.

122654128 is a deficient number, since it is larger than the sum of its proper divisors (115221272).

122654128 is a wasteful number, since it uses less digits than its factorization.

122654128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7524 (or 7518 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 122654128 is about 11074.9324151437. The cubic root of 122654128 is about 496.8523974424.

The spelling of 122654128 in words is "one hundred twenty-two million, six hundred fifty-four thousand, one hundred twenty-eight".