13365501 has 4 divisors (see below), whose sum is σ = 17820672. Its totient is φ = 8910332.

The previous prime is 13365481. The next prime is 13365503. The reversal of 13365501 is 10556331.

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: 10556331 = 3 ⋅3518777.

It is a cyclic number.

It is not a de Polignac number, because 13365501 - 2¹⁸ = 13103357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13365503) 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, 2227581 + ... + 2227586.

It is an arithmetic number, because the mean of its divisors is an integer number (4455168).

Almost surely, 2^13365501 is an apocalyptic number.

It is an amenable number.

13365501 is a deficient number, since it is larger than the sum of its proper divisors (4455171).

13365501 is an equidigital number, since it uses as much as digits as its factorization.

13365501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455170.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 13365501 is about 3655.8858023740. The cubic root of 13365501 is about 237.3167620796.

The spelling of 13365501 in words is "thirteen million, three hundred sixty-five thousand, five hundred one".