12561753 has 4 divisors (see below), whose sum is σ = 16749008. Its totient is φ = 8374500.

The previous prime is 12561751. The next prime is 12561799. The reversal of 12561753 is 35716521.

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 not a de Polignac number, because 12561753 - 2¹ = 12561751 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12561753.

It is not an unprimeable number, because it can be changed into a prime (12561751) 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, 2093623 + ... + 2093628.

It is an arithmetic number, because the mean of its divisors is an integer number (4187252).

Almost surely, 2^12561753 is an apocalyptic number.

It is an amenable number.

12561753 is a deficient number, since it is larger than the sum of its proper divisors (4187255).

12561753 is an equidigital number, since it uses as much as digits as its factorization.

12561753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187254.

The product of its digits is 6300, while the sum is 30.

The square root of 12561753 is about 3544.2563394879. The cubic root of 12561753 is about 232.4609901021.

The spelling of 12561753 in words is "twelve million, five hundred sixty-one thousand, seven hundred fifty-three".