128522936 has 8 divisors (see below), whose sum is σ = 240980520. Its totient is φ = 64261464.

The previous prime is 128522917. The next prime is 128522959. The reversal of 128522936 is 639225821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 128522936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8032676 + ... + 8032691.

It is an arithmetic number, because the mean of its divisors is an integer number (30122565).

Almost surely, 2^128522936 is an apocalyptic number.

It is an amenable number.

128522936 is a deficient number, since it is larger than the sum of its proper divisors (112457584).

128522936 is a wasteful number, since it uses less digits than its factorization.

128522936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16065373 (or 16065369 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 128522936 is about 11336.7956672068. The cubic root of 128522936 is about 504.6537979412.

The spelling of 128522936 in words is "one hundred twenty-eight million, five hundred twenty-two thousand, nine hundred thirty-six".