132978128 has 20 divisors (see below), whose sum is σ = 257931780. Its totient is φ = 66415104.

The previous prime is 132978089. The next prime is 132978143. The reversal of 132978128 is 821879231.

It can be written as a sum of positive squares in 2 ways, for example, as 62283664 + 70694464 = 7892^2 + 8408^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12026 + ... + 20262.

It is an arithmetic number, because the mean of its divisors is an integer number (12896589).

Almost surely, 2^132978128 is an apocalyptic number.

It is an amenable number.

132978128 is a deficient number, since it is larger than the sum of its proper divisors (124953652).

132978128 is a wasteful number, since it uses less digits than its factorization.

132978128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9254 (or 9248 counting only the distinct ones).

The product of its digits is 48384, while the sum is 41.

The square root of 132978128 is about 11531.6142842188. The cubic root of 132978128 is about 510.4188894782.

The spelling of 132978128 in words is "one hundred thirty-two million, nine hundred seventy-eight thousand, one hundred twenty-eight".