13939065 has 96 divisors (see below), whose sum is σ = 31000320. Its totient is φ = 5640192.

The previous prime is 13938983. The next prime is 13939069. The reversal of 13939065 is 56093931.

It is not a de Polignac number, because 13939065 - 2⁹ = 13938553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13939069) 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 95 ways as a sum of consecutive naturals, for example, 101677 + ... + 101813.

It is an arithmetic number, because the mean of its divisors is an integer number (322920).

Almost surely, 2^13939065 is an apocalyptic number.

13939065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13939065 is an abundant number, since it is smaller than the sum of its proper divisors (17061255).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13939065 is a wasteful number, since it uses less digits than its factorization.

13939065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 13939065 is about 3733.5057251865. The cubic root of 13939065 is about 240.6640463987.

It can be divided in two parts, 139 and 39065, that added together give a square (39204 = 198²).

The spelling of 13939065 in words is "thirteen million, nine hundred thirty-nine thousand, sixty-five".