783128132 has 6 divisors (see below), whose sum is σ = 1370474238. Its totient is φ = 391564064.

The previous prime is 783128131. The next prime is 783128161. The reversal of 783128132 is 231821387.

783128132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 762643456 + 20484676 = 27616^2 + 4526^2 .

It is a super-2 number, since 2×783128132² = 1226579342259618848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 783128092 and 783128101.

It is not an unprimeable number, because it can be changed into a prime (783128131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97891013 + ... + 97891020.

It is an arithmetic number, because the mean of its divisors is an integer number (228412373).

Almost surely, 2^783128132 is an apocalyptic number.

It is an amenable number.

783128132 is a deficient number, since it is larger than the sum of its proper divisors (587346106).

783128132 is a wasteful number, since it uses less digits than its factorization.

783128132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195782037 (or 195782035 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 783128132 is about 27984.4265976632. The cubic root of 783128132 is about 921.7453210938.

The spelling of 783128132 in words is "seven hundred eighty-three million, one hundred twenty-eight thousand, one hundred thirty-two".