12294921 has 8 divisors (see below), whose sum is σ = 16441600. Its totient is φ = 8172432.

The previous prime is 12294913. The next prime is 12294929. The reversal of 12294921 is 12949221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12294913) and next prime (12294929).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12294921 - 2³ = 12294913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12294929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 6918.

It is an arithmetic number, because the mean of its divisors is an integer number (2055200).

Almost surely, 2^12294921 is an apocalyptic number.

It is an amenable number.

12294921 is a deficient number, since it is larger than the sum of its proper divisors (4146679).

12294921 is a wasteful number, since it uses less digits than its factorization.

12294921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12095.

The product of its digits is 2592, while the sum is 30.

The square root of 12294921 is about 3506.4114133969. The cubic root of 12294921 is about 230.8032469429.

It can be divided in two parts, 1 and 2294921, that added together give a palindrome (2294922).

The spelling of 12294921 in words is "twelve million, two hundred ninety-four thousand, nine hundred twenty-one".