12626251 has 4 divisors (see below), whose sum is σ = 13774104. Its totient is φ = 11478400.

The previous prime is 12626227. The next prime is 12626261. The reversal of 12626251 is 15262621.

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 12626251 - 2²³ = 4237643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12626261) 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, 573910 + ... + 573931.

It is an arithmetic number, because the mean of its divisors is an integer number (3443526).

Almost surely, 2^12626251 is an apocalyptic number.

12626251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12626251 is a deficient number, since it is larger than the sum of its proper divisors (1147853).

12626251 is a wasteful number, since it uses less digits than its factorization.

12626251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147852.

The product of its digits is 1440, while the sum is 25.

The square root of 12626251 is about 3553.3436366330. The cubic root of 12626251 is about 232.8581661182.

Adding to 12626251 its reverse (15262621), we get a palindrome (27888872).

The spelling of 12626251 in words is "twelve million, six hundred twenty-six thousand, two hundred fifty-one".