12801251 has 4 divisors (see below), whose sum is σ = 12852504. Its totient is φ = 12750000.

The previous prime is 12801247. The next prime is 12801259. The reversal of 12801251 is 15210821.

It is a happy number.

12801251 is digitally balanced in base 2, 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.

It is a cyclic number.

It is not a de Polignac number, because 12801251 - 2² = 12801247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12801259) 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, 25250 + ... + 25751.

It is an arithmetic number, because the mean of its divisors is an integer number (3213126).

Almost surely, 2^12801251 is an apocalyptic number.

12801251 is a deficient number, since it is larger than the sum of its proper divisors (51253).

12801251 is an equidigital number, since it uses as much as digits as its factorization.

12801251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51252.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 12801251 is about 3577.8835922931. The cubic root of 12801251 is about 233.9290395300.

The spelling of 12801251 in words is "twelve million, eight hundred one thousand, two hundred fifty-one".