13620523 has 8 divisors (see below), whose sum is σ = 15860448. Its totient is φ = 11454144.

The previous prime is 13620521. The next prime is 13620527. The reversal of 13620523 is 32502631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13620523 - 2¹ = 13620521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13620494 and 13620503.

It is not an unprimeable number, because it can be changed into a prime (13620521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17986 + ... + 18727.

It is an arithmetic number, because the mean of its divisors is an integer number (1982556).

Almost surely, 2^13620523 is an apocalyptic number.

13620523 is a deficient number, since it is larger than the sum of its proper divisors (2239925).

13620523 is an equidigital number, since it uses as much as digits as its factorization.

13620523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36773.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13620523 is about 3690.5992738307. The cubic root of 13620523 is about 238.8166459595.

The spelling of 13620523 in words is "thirteen million, six hundred twenty thousand, five hundred twenty-three".