128922952 has 8 divisors (see below), whose sum is σ = 241730550. Its totient is φ = 64461472.

The previous prime is 128922947. The next prime is 128922967. The reversal of 128922952 is 259229821.

It can be written as a sum of positive squares in only one way, i.e., 86229796 + 42693156 = 9286^2 + 6534^2 .

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

It is a super-2 number, since 2×128922952² = 33242255104788608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8057677 + ... + 8057692.

Almost surely, 2^128922952 is an apocalyptic number.

It is an amenable number.

128922952 is a deficient number, since it is larger than the sum of its proper divisors (112807598).

128922952 is a wasteful number, since it uses less digits than its factorization.

128922952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16115375 (or 16115371 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 128922952 is about 11354.4243359142. The cubic root of 128922952 is about 505.1768187801.

The spelling of 128922952 in words is "one hundred twenty-eight million, nine hundred twenty-two thousand, nine hundred fifty-two".