128932612 has 18 divisors (see below), whose sum is σ = 227805018. Its totient is φ = 63851328.

The previous prime is 128932597. The next prime is 128932621. The reversal of 128932612 is 216239821.

It can be written as a sum of positive squares in 3 ways, for example, as 82882816 + 46049796 = 9104^2 + 6786^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46168 + ... + 48880.

Almost surely, 2^128932612 is an apocalyptic number.

It is an amenable number.

128932612 is a deficient number, since it is larger than the sum of its proper divisors (98872406).

128932612 is a wasteful number, since it uses less digits than its factorization.

128932612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935 (or 2824 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 128932612 is about 11354.8497127879. The cubic root of 128932612 is about 505.1894358409.

The spelling of 128932612 in words is "one hundred twenty-eight million, nine hundred thirty-two thousand, six hundred twelve".