13040625 has 48 divisors (see below), whose sum is σ = 23623488. Its totient is φ = 6360000.

The previous prime is 13040623. The next prime is 13040627. The reversal of 13040625 is 52604031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13040623) and next prime (13040627).

It is not a de Polignac number, because 13040625 - 2¹ = 13040623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13040623) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121822 + ... + 121928.

It is an arithmetic number, because the mean of its divisors is an integer number (492156).

Almost surely, 2^13040625 is an apocalyptic number.

13040625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13040625 is a deficient number, since it is larger than the sum of its proper divisors (10582863).

13040625 is an equidigital number, since it uses as much as digits as its factorization.

13040625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13040625 is about 3611.1805548878. The cubic root of 13040625 is about 235.3781447746.

Adding to 13040625 its reverse (52604031), we get a palindrome (65644656).

It can be divided in two parts, 130 and 40625, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 13040625 in words is "thirteen million, forty thousand, six hundred twenty-five".