13119639 has 24 divisors (see below), whose sum is σ = 19193040. Its totient is φ = 7967232.

The previous prime is 13119611. The next prime is 13119641. The reversal of 13119639 is 93691131.

It is a happy number.

It is not a de Polignac number, because 13119639 - 2⁵ = 13119607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13119539) 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, 57177 + ... + 57405.

It is an arithmetic number, because the mean of its divisors is an integer number (799710).

Almost surely, 2^13119639 is an apocalyptic number.

13119639 is a deficient number, since it is larger than the sum of its proper divisors (6073401).

13119639 is a wasteful number, since it uses less digits than its factorization.

13119639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 358 counting only the distinct ones).

The product of its digits is 4374, while the sum is 33.

The square root of 13119639 is about 3622.1042226860. The cubic root of 13119639 is about 235.8525783787.

It can be divided in two parts, 131196 and 39, that multiplied together give a square (5116644 = 2262²).

The spelling of 13119639 in words is "thirteen million, one hundred nineteen thousand, six hundred thirty-nine".