1325089872 has 30 divisors (see below), whose sum is σ = 3708411642. Its totient is φ = 441696576.

The previous prime is 1325089859. The next prime is 1325089877. The reversal of 1325089872 is 2789805231.

It is a happy number.

1325089872 is a `hidden beast` number, since 132 + 508 + 9 + 8 + 7 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1163901456 + 161188416 = 34116^2 + 12696^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325089877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4600863 + ... + 4601150.

Almost surely, 2^1325089872 is an apocalyptic number.

1325089872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1325089872 is an abundant number, since it is smaller than the sum of its proper divisors (2383321770).

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

1325089872 is a wasteful number, since it uses less digits than its factorization.

1325089872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9202027 (or 9202018 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1325089872 is about 36401.7839123305. The cubic root of 1325089872 is about 1098.3694497644.

The spelling of 1325089872 in words is "one billion, three hundred twenty-five million, eighty-nine thousand, eight hundred seventy-two".