1309527372 has 24 divisors (see below), whose sum is σ = 3130090992. Its totient is φ = 425862400.

The previous prime is 1309527371. The next prime is 1309527383. The reversal of 1309527372 is 2737259031.

It is a self number, because there is not a number n which added to its sum of digits gives 1309527372.

It is not an unprimeable number, because it can be changed into a prime (1309527371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1330329 + ... + 1331312.

It is an arithmetic number, because the mean of its divisors is an integer number (130420458).

Almost surely, 2^1309527372 is an apocalyptic number.

1309527372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1309527372 is an abundant number, since it is smaller than the sum of its proper divisors (1820563620).

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

1309527372 is a wasteful number, since it uses less digits than its factorization.

1309527372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661689 (or 2661687 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 39.

The square root of 1309527372 is about 36187.3924454360. The cubic root of 1309527372 is about 1094.0525772195.

The spelling of 1309527372 in words is "one billion, three hundred nine million, five hundred twenty-seven thousand, three hundred seventy-two".