13619225 has 12 divisors (see below), whose sum is σ = 17080380. Its totient is φ = 10771200.

The previous prime is 13619191. The next prime is 13619231. The reversal of 13619225 is 52291631.

13619225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3455881 + 10163344 = 1859^2 + 3188^2 .

It is not a de Polignac number, because 13619225 - 2⁶ = 13619161 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 836 + ... + 5285.

It is an arithmetic number, because the mean of its divisors is an integer number (1423365).

Almost surely, 2^13619225 is an apocalyptic number.

It is an amenable number.

13619225 is a deficient number, since it is larger than the sum of its proper divisors (3461155).

13619225 is an equidigital number, since it uses as much as digits as its factorization.

13619225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6220 (or 6215 counting only the distinct ones).

The product of its digits is 3240, while the sum is 29.

The square root of 13619225 is about 3690.4234174414. The cubic root of 13619225 is about 238.8090595192.

The spelling of 13619225 in words is "thirteen million, six hundred nineteen thousand, two hundred twenty-five".