13646361 has 4 divisors (see below), whose sum is σ = 18195152. Its totient is φ = 9097572.

The previous prime is 13646341. The next prime is 13646407. The reversal of 13646361 is 16364631.

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: 16364631 = 3 ⋅5454877.

It is not a de Polignac number, because 13646361 - 2⁷ = 13646233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13646341) 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, 2274391 + ... + 2274396.

It is an arithmetic number, because the mean of its divisors is an integer number (4548788).

Almost surely, 2^13646361 is an apocalyptic number.

It is an amenable number.

13646361 is a deficient number, since it is larger than the sum of its proper divisors (4548791).

13646361 is an equidigital number, since it uses as much as digits as its factorization.

13646361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4548790.

The product of its digits is 7776, while the sum is 30.

The square root of 13646361 is about 3694.0981308027. The cubic root of 13646361 is about 238.9675615248.

The spelling of 13646361 in words is "thirteen million, six hundred forty-six thousand, three hundred sixty-one".