13949825 has 12 divisors (see below), whose sum is σ = 17344128. Its totient is φ = 11130000.

The previous prime is 13949821. The next prime is 13949839. The reversal of 13949825 is 52894931.

13949825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13949825 - 2² = 13949821 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13949821) 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, 18200 + ... + 18950.

It is an arithmetic number, because the mean of its divisors is an integer number (1445344).

Almost surely, 2^13949825 is an apocalyptic number.

It is an amenable number.

13949825 is a deficient number, since it is larger than the sum of its proper divisors (3394303).

13949825 is an equidigital number, since it uses as much as digits as its factorization.

13949825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1499 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 13949825 is about 3734.9464520927. The cubic root of 13949825 is about 240.7259558383.

The spelling of 13949825 in words is "thirteen million, nine hundred forty-nine thousand, eight hundred twenty-five".