13520373 has 4 divisors (see below), whose sum is σ = 18027168. Its totient is φ = 9013580.

The previous prime is 13520363. The next prime is 13520383. The reversal of 13520373 is 37302531.

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.

It is an interprime number because it is at equal distance from previous prime (13520363) and next prime (13520383).

It is a cyclic number.

It is not a de Polignac number, because 13520373 - 2¹³ = 13512181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520303) 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, 2253393 + ... + 2253398.

It is an arithmetic number, because the mean of its divisors is an integer number (4506792).

Almost surely, 2^13520373 is an apocalyptic number.

It is an amenable number.

13520373 is a deficient number, since it is larger than the sum of its proper divisors (4506795).

13520373 is an equidigital number, since it uses as much as digits as its factorization.

13520373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506794.

The product of its (nonzero) digits is 1890, while the sum is 24.

The square root of 13520373 is about 3677.0059831336. The cubic root of 13520373 is about 238.2298758211.

The spelling of 13520373 in words is "thirteen million, five hundred twenty thousand, three hundred seventy-three".