13387253 has 4 divisors (see below), whose sum is σ = 14604288. Its totient is φ = 12170220.

The previous prime is 13387249. The next prime is 13387273. The reversal of 13387253 is 35278331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35278331 = 11 ⋅3207121.

It is a cyclic number.

It is not a de Polignac number, because 13387253 - 2² = 13387249 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 (13387273) 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 3 ways as a sum of consecutive naturals, for example, 608501 + ... + 608522.

It is an arithmetic number, because the mean of its divisors is an integer number (3651072).

Almost surely, 2^13387253 is an apocalyptic number.

It is an amenable number.

13387253 is a deficient number, since it is larger than the sum of its proper divisors (1217035).

13387253 is a wasteful number, since it uses less digits than its factorization.

13387253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217034.

The product of its digits is 15120, while the sum is 32.

The square root of 13387253 is about 3658.8595217636. The cubic root of 13387253 is about 237.4454345560.

The spelling of 13387253 in words is "thirteen million, three hundred eighty-seven thousand, two hundred fifty-three".