12274521 has 16 divisors (see below), whose sum is σ = 18754944. Its totient is φ = 6994944.

The previous prime is 12274517. The next prime is 12274529. The reversal of 12274521 is 12547221.

It is not a de Polignac number, because 12274521 - 2² = 12274517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12274491 and 12274500.

It is not an unprimeable number, because it can be changed into a prime (12274529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11611 + ... + 12623.

It is an arithmetic number, because the mean of its divisors is an integer number (1172184).

Almost surely, 2^12274521 is an apocalyptic number.

It is an amenable number.

12274521 is a deficient number, since it is larger than the sum of its proper divisors (6480423).

12274521 is a wasteful number, since it uses less digits than its factorization.

12274521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600.

The product of its digits is 1120, while the sum is 24.

The square root of 12274521 is about 3503.5012487510. The cubic root of 12274521 is about 230.6755250235.

The spelling of 12274521 in words is "twelve million, two hundred seventy-four thousand, five hundred twenty-one".