13139797 has 8 divisors (see below), whose sum is σ = 14477472. Its totient is φ = 11826000.

The previous prime is 13139783. The next prime is 13139821. The reversal of 13139797 is 79793131.

It is a happy number.

13139797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13139797 - 2¹¹ = 13137749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13139767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4803 + ... + 7024.

It is an arithmetic number, because the mean of its divisors is an integer number (1809684).

Almost surely, 2^13139797 is an apocalyptic number.

It is an amenable number.

13139797 is a deficient number, since it is larger than the sum of its proper divisors (1337675).

13139797 is a wasteful number, since it uses less digits than its factorization.

13139797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11939.

The product of its digits is 35721, while the sum is 40.

The square root of 13139797 is about 3624.8857913043. The cubic root of 13139797 is about 235.9733104453.

The spelling of 13139797 in words is "thirteen million, one hundred thirty-nine thousand, seven hundred ninety-seven".