13652749 has 4 divisors (see below), whose sum is σ = 14893920. Its totient is φ = 12411580.

The previous prime is 13652711. The next prime is 13652759. The reversal of 13652749 is 94725631.

13652749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13652749 - 2¹¹ = 13650701 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 (13652759) 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, 620569 + ... + 620590.

It is an arithmetic number, because the mean of its divisors is an integer number (3723480).

Almost surely, 2^13652749 is an apocalyptic number.

It is an amenable number.

13652749 is a deficient number, since it is larger than the sum of its proper divisors (1241171).

13652749 is a wasteful number, since it uses less digits than its factorization.

13652749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241170.

The product of its digits is 45360, while the sum is 37.

The square root of 13652749 is about 3694.9626520440. The cubic root of 13652749 is about 239.0048434212.

It can be divided in two parts, 1365 and 2749, that added together give a palindrome (4114).

The spelling of 13652749 in words is "thirteen million, six hundred fifty-two thousand, seven hundred forty-nine".