13139253 has 24 divisors (see below), whose sum is σ = 19874400. Its totient is φ = 8674128.

The previous prime is 13139251. The next prime is 13139261. The reversal of 13139253 is 35293131.

It is a happy number.

It is not a de Polignac number, because 13139253 - 2¹ = 13139251 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13139251) 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 23 ways as a sum of consecutive naturals, for example, 33583 + ... + 33971.

It is an arithmetic number, because the mean of its divisors is an integer number (828100).

Almost surely, 2^13139253 is an apocalyptic number.

It is an amenable number.

13139253 is a deficient number, since it is larger than the sum of its proper divisors (6735147).

13139253 is an equidigital number, since it uses as much as digits as its factorization.

13139253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 531 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 13139253 is about 3624.8107536808. The cubic root of 13139253 is about 235.9700538944.

The spelling of 13139253 in words is "thirteen million, one hundred thirty-nine thousand, two hundred fifty-three".