12251849 has 4 divisors (see below), whose sum is σ = 12972564. Its totient is φ = 11531136.

The previous prime is 12251807. The next prime is 12251887. The reversal of 12251849 is 94815221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 2839225 = 3068^2 + 1685^2 .

It is a cyclic number.

It is not a de Polignac number, because 12251849 - 2¹⁶ = 12186313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12251149) 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, 360332 + ... + 360365.

It is an arithmetic number, because the mean of its divisors is an integer number (3243141).

Almost surely, 2^12251849 is an apocalyptic number.

It is an amenable number.

12251849 is a deficient number, since it is larger than the sum of its proper divisors (720715).

12251849 is an equidigital number, since it uses as much as digits as its factorization.

12251849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720714.

The product of its digits is 5760, while the sum is 32.

The square root of 12251849 is about 3500.2641328905. The cubic root of 12251849 is about 230.5334122462.

It can be divided in two parts, 1225 and 1849, that multiplied together give a square (2265025 = 1505²).

The spelling of 12251849 in words is "twelve million, two hundred fifty-one thousand, eight hundred forty-nine".