13312725 has 24 divisors (see below), whose sum is σ = 22186080. Its totient is φ = 7043520.

The previous prime is 13312723. The next prime is 13312727. The reversal of 13312725 is 52721331.

13312725 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13312723) and next prime (13312727).

It is not a de Polignac number, because 13312725 - 2¹ = 13312723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13312695 and 13312704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9787 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (924420).

Almost surely, 2^13312725 is an apocalyptic number.

13312725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13312725 is a deficient number, since it is larger than the sum of its proper divisors (8873355).

13312725 is a wasteful number, since it uses less digits than its factorization.

13312725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1424 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 13312725 is about 3648.6607131933. The cubic root of 13312725 is about 237.0039878978.

The spelling of 13312725 in words is "thirteen million, three hundred twelve thousand, seven hundred twenty-five".