13752569 has 4 divisors (see below), whose sum is σ = 13781760. Its totient is φ = 13723380.

The previous prime is 13752539. The next prime is 13752577. The reversal of 13752569 is 96525731.

It is a happy number.

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: 96525731 = 1013 ⋅95287.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13752569 is a prime.

It is a super-2 number, since 2×13752569² = 378266308199522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13752539) 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, 13877 + ... + 14834.

It is an arithmetic number, because the mean of its divisors is an integer number (3445440).

Almost surely, 2^13752569 is an apocalyptic number.

It is an amenable number.

13752569 is a deficient number, since it is larger than the sum of its proper divisors (29191).

13752569 is an equidigital number, since it uses as much as digits as its factorization.

13752569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29190.

The product of its digits is 56700, while the sum is 38.

The square root of 13752569 is about 3708.4456312585. The cubic root of 13752569 is about 239.5859121151.

The spelling of 13752569 in words is "thirteen million, seven hundred fifty-two thousand, five hundred sixty-nine".