13225761 has 24 divisors (see below), whose sum is σ = 20360704. Its totient is φ = 8573040.

The previous prime is 13225757. The next prime is 13225763. The reversal of 13225761 is 16752231.

It is a happy number.

13225761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13225761 - 2² = 13225757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13225763) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8256 + ... + 9726.

Almost surely, 2^13225761 is an apocalyptic number.

It is an amenable number.

13225761 is a deficient number, since it is larger than the sum of its proper divisors (7134943).

13225761 is an equidigital number, since it uses as much as digits as its factorization.

13225761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1511 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 13225761 is about 3636.7239378320. The cubic root of 13225761 is about 236.4867920638.

Adding to 13225761 its reverse (16752231), we get a palindrome (29977992).

The spelling of 13225761 in words is "thirteen million, two hundred twenty-five thousand, seven hundred sixty-one".