128230972 has 6 divisors (see below), whose sum is σ = 224404208. Its totient is φ = 64115484.

The previous prime is 128230919. The next prime is 128231029. The reversal of 128230972 is 279032821.

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, 16028868 + ... + 16028875.

Almost surely, 2^128230972 is an apocalyptic number.

It is an amenable number.

128230972 is a deficient number, since it is larger than the sum of its proper divisors (96173236).

128230972 is a wasteful number, since it uses less digits than its factorization.

128230972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32057747 (or 32057745 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 128230972 is about 11323.9115150199. The cubic root of 128230972 is about 504.2713695649.

The spelling of 128230972 in words is "one hundred twenty-eight million, two hundred thirty thousand, nine hundred seventy-two".