13875013 has 4 divisors (see below), whose sum is σ = 13882540. Its totient is φ = 13867488.

The previous prime is 13874983. The next prime is 13875023. The reversal of 13875013 is 31057831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5769604 + 8105409 = 2402^2 + 2847^2 .

It is a cyclic number.

It is not a de Polignac number, because 13875013 - 2⁵ = 13874981 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 (13875023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081 + ... + 5377.

It is an arithmetic number, because the mean of its divisors is an integer number (3470635).

Almost surely, 2^13875013 is an apocalyptic number.

It is an amenable number.

13875013 is a deficient number, since it is larger than the sum of its proper divisors (7527).

13875013 is an equidigital number, since it uses as much as digits as its factorization.

13875013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7526.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 13875013 is about 3724.9178514432. The cubic root of 13875013 is about 240.2948517323.

It can be divided in two parts, 1387 and 5013, that added together give a square (6400 = 80²).

The spelling of 13875013 in words is "thirteen million, eight hundred seventy-five thousand, thirteen".