13772365 has 4 divisors (see below), whose sum is σ = 16526844. Its totient is φ = 11017888.

The previous prime is 13772309. The next prime is 13772371. The reversal of 13772365 is 56327731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2137444 + 11634921 = 1462^2 + 3411^2 .

It is a cyclic number.

It is not a de Polignac number, because 13772365 - 2²³ = 5383757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13772365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377232 + ... + 1377241.

It is an arithmetic number, because the mean of its divisors is an integer number (4131711).

Almost surely, 2^13772365 is an apocalyptic number.

It is an amenable number.

13772365 is a deficient number, since it is larger than the sum of its proper divisors (2754479).

13772365 is an equidigital number, since it uses as much as digits as its factorization.

13772365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754478.

The product of its digits is 26460, while the sum is 34.

The square root of 13772365 is about 3711.1137142373. The cubic root of 13772365 is about 239.7008135286.

The spelling of 13772365 in words is "thirteen million, seven hundred seventy-two thousand, three hundred sixty-five".