13641825 has 12 divisors (see below), whose sum is σ = 22554608. Its totient is φ = 7275600.

The previous prime is 13641821. The next prime is 13641827. The reversal of 13641825 is 52814631.

It is not a de Polignac number, because 13641825 - 2² = 13641821 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13641792 and 13641801.

It is not an unprimeable number, because it can be changed into a prime (13641821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90871 + ... + 91020.

Almost surely, 2^13641825 is an apocalyptic number.

13641825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13641825 is a deficient number, since it is larger than the sum of its proper divisors (8912783).

13641825 is a wasteful number, since it uses less digits than its factorization.

13641825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181904 (or 181899 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 13641825 is about 3693.4841274872. The cubic root of 13641825 is about 238.9410812789.

The spelling of 13641825 in words is "thirteen million, six hundred forty-one thousand, eight hundred twenty-five".