1325638132 has 48 divisors (see below), whose sum is σ = 3005511040. Its totient is φ = 496824192.

The previous prime is 1325638129. The next prime is 1325638133. The reversal of 1325638132 is 2318365231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325638133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88923 + ... + 102754.

Almost surely, 2^1325638132 is an apocalyptic number.

It is an amenable number.

1325638132 is an abundant number, since it is smaller than the sum of its proper divisors (1679872908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1325638132 is a wasteful number, since it uses less digits than its factorization.

1325638132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191720 (or 191718 counting only the distinct ones).

The product of its digits is 25920, while the sum is 34.

The square root of 1325638132 is about 36409.3138084200. The cubic root of 1325638132 is about 1098.5209134533.

The spelling of 1325638132 in words is "one billion, three hundred twenty-five million, six hundred thirty-eight thousand, one hundred thirty-two".