13620501 has 16 divisors (see below), whose sum is σ = 20830720. Its totient is φ = 8786880.

The previous prime is 13620493. The next prime is 13620521. The reversal of 13620501 is 10502631.

It is not a de Polignac number, because 13620501 - 2³ = 13620493 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 (13620521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7300 + ... + 8973.

It is an arithmetic number, because the mean of its divisors is an integer number (1301920).

Almost surely, 2^13620501 is an apocalyptic number.

It is an amenable number.

13620501 is a deficient number, since it is larger than the sum of its proper divisors (7210219).

13620501 is a wasteful number, since it uses less digits than its factorization.

13620501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16313 (or 16307 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13620501 is about 3690.5962932838. The cubic root of 13620501 is about 238.8165173798.

The spelling of 13620501 in words is "thirteen million, six hundred twenty thousand, five hundred one".