12951225 has 48 divisors (see below), whose sum is σ = 27200640. Its totient is φ = 5918400.

The previous prime is 12951209. The next prime is 12951227. The reversal of 12951225 is 52215921.

12951225 is a `hidden beast` number, since 129 + 512 + 25 = 666.

It is not a de Polignac number, because 12951225 - 2⁴ = 12951209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12951227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3355 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (566680).

Almost surely, 2^12951225 is an apocalyptic number.

12951225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12951225 is an abundant number, since it is smaller than the sum of its proper divisors (14249415).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12951225 is a wasteful number, since it uses less digits than its factorization.

12951225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2756 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 12951225 is about 3598.7810436313. The cubic root of 12951225 is about 234.8390326681.

The spelling of 12951225 in words is "twelve million, nine hundred fifty-one thousand, two hundred twenty-five".