12451251 has 12 divisors (see below), whose sum is σ = 17522952. Its totient is φ = 7863264.

The previous prime is 12451223. The next prime is 12451253. The reversal of 12451251 is 15215421.

It is not a de Polignac number, because 12451251 - 2¹⁷ = 12320179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4666 + ... + 6831.

It is an arithmetic number, because the mean of its divisors is an integer number (1460246).

Almost surely, 2^12451251 is an apocalyptic number.

12451251 is a deficient number, since it is larger than the sum of its proper divisors (5071701).

12451251 is a wasteful number, since it uses less digits than its factorization.

12451251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11538 (or 11519 counting only the distinct ones).

The product of its digits is 400, while the sum is 21.

The square root of 12451251 is about 3528.6330214405. The cubic root of 12451251 is about 231.7773515451. Note that the first 3 decimals are identical.

Adding to 12451251 its reverse (15215421), we get a palindrome (27666672).

The spelling of 12451251 in words is "twelve million, four hundred fifty-one thousand, two hundred fifty-one".