75732128 has 12 divisors (see below), whose sum is σ = 149097690. Its totient is φ = 37866048.

The previous prime is 75732121. The next prime is 75732149. The reversal of 75732128 is 82123757.

It can be written as a sum of positive squares in only one way, i.e., 42876304 + 32855824 = 6548^2 + 5732^2 .

It is a super-2 number, since 2×75732128² = 11470710422816768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75732121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1183283 + ... + 1183346.

Almost surely, 2^75732128 is an apocalyptic number.

It is an amenable number.

75732128 is a deficient number, since it is larger than the sum of its proper divisors (73365562).

75732128 is a wasteful number, since it uses less digits than its factorization.

75732128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366639 (or 2366631 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 75732128 is about 8702.4208126245. The cubic root of 75732128 is about 423.0841153395.

The spelling of 75732128 in words is "seventy-five million, seven hundred thirty-two thousand, one hundred twenty-eight".