13139995 has 24 divisors (see below), whose sum is σ = 17830512. Its totient is φ = 9282240.

The previous prime is 13139993. The next prime is 13140007. The reversal of 13139995 is 59993131.

13139995 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13139995 - 2¹ = 13139993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13139993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22092 + ... + 22678.

It is an arithmetic number, because the mean of its divisors is an integer number (742938).

Almost surely, 2^13139995 is an apocalyptic number.

13139995 is a deficient number, since it is larger than the sum of its proper divisors (4690517).

13139995 is a wasteful number, since it uses less digits than its factorization.

13139995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 640 counting only the distinct ones).

The product of its digits is 32805, while the sum is 40.

The square root of 13139995 is about 3624.9131024067. The cubic root of 13139995 is about 235.9744957117.

The spelling of 13139995 in words is "thirteen million, one hundred thirty-nine thousand, nine hundred ninety-five".