12256901 has 4 divisors (see below), whose sum is σ = 12263904. Its totient is φ = 12249900.

The previous prime is 12256883. The next prime is 12256903. The reversal of 12256901 is 10965221.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10965221 = 17 ⋅645013.

It is a cyclic number.

It is not a de Polignac number, because 12256901 - 2¹⁰ = 12255877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12256903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (3065976).

Almost surely, 2^12256901 is an apocalyptic number.

It is an amenable number.

12256901 is a deficient number, since it is larger than the sum of its proper divisors (7003).

12256901 is an equidigital number, since it uses as much as digits as its factorization.

12256901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7002.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 12256901 is about 3500.9857183371. The cubic root of 12256901 is about 230.5650943963.

The spelling of 12256901 in words is "twelve million, two hundred fifty-six thousand, nine hundred one".