13125985 has 16 divisors (see below), whose sum is σ = 16563456. Its totient is φ = 9966528.

The previous prime is 13125971. The next prime is 13125991. The reversal of 13125985 is 58952131.

It is a cyclic number.

It is not a de Polignac number, because 13125985 - 2¹⁵ = 13093217 is a prime.

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 13125985.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17692 + ... + 18418.

It is an arithmetic number, because the mean of its divisors is an integer number (1035216).

Almost surely, 2^13125985 is an apocalyptic number.

It is an amenable number.

13125985 is a deficient number, since it is larger than the sum of its proper divisors (3437471).

13125985 is a wasteful number, since it uses less digits than its factorization.

13125985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912.

The product of its digits is 10800, while the sum is 34.

The square root of 13125985 is about 3622.9801269121. The cubic root of 13125985 is about 235.8905997299.

The spelling of 13125985 in words is "thirteen million, one hundred twenty-five thousand, nine hundred eighty-five".