13266645 has 16 divisors (see below), whose sum is σ = 24259200. Its totient is φ = 6064704.

The previous prime is 13266641. The next prime is 13266677. The reversal of 13266645 is 54666231.

It is not a de Polignac number, because 13266645 - 2² = 13266641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13266641) 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, 63070 + ... + 63279.

It is an arithmetic number, because the mean of its divisors is an integer number (1516200).

Almost surely, 2^13266645 is an apocalyptic number.

13266645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13266645 is a deficient number, since it is larger than the sum of its proper divisors (10992555).

13266645 is a wasteful number, since it uses less digits than its factorization.

13266645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126364.

The product of its digits is 25920, while the sum is 33.

The square root of 13266645 is about 3642.3405936293. The cubic root of 13266645 is about 236.7302205391.

The spelling of 13266645 in words is "thirteen million, two hundred sixty-six thousand, six hundred forty-five".