13904125 has 16 divisors (see below), whose sum is σ = 17782128. Its totient is φ = 10848000.

The previous prime is 13904123. The next prime is 13904129. The reversal of 13904125 is 52140931.

It can be written as a sum of positive squares in 8 ways, for example, as 3829849 + 10074276 = 1957^2 + 3174^2 .

It is not a de Polignac number, because 13904125 - 2¹ = 13904123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13904125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (1111383).

Almost surely, 2^13904125 is an apocalyptic number.

It is an amenable number.

13904125 is a deficient number, since it is larger than the sum of its proper divisors (3878003).

13904125 is an equidigital number, since it uses as much as digits as its factorization.

13904125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2769 (or 2759 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 13904125 is about 3728.8235410113. The cubic root of 13904125 is about 240.4627933619.

The spelling of 13904125 in words is "thirteen million, nine hundred four thousand, one hundred twenty-five".