12494921 has 2 divisors, whose sum is σ = 12494922. Its totient is φ = 12494920.

The previous prime is 12494893. The next prime is 12494941. The reversal of 12494921 is 12949421.

12494921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7812025 + 4682896 = 2795^2 + 2164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12494921 - 2⁶ = 12494857 is a prime.

It is a super-2 number, since 2×12494921² = 312246101592482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12494941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6247460 + 6247461.

It is an arithmetic number, because the mean of its divisors is an integer number (6247461).

Almost surely, 2^12494921 is an apocalyptic number.

It is an amenable number.

12494921 is a deficient number, since it is larger than the sum of its proper divisors (1).

12494921 is an equidigital number, since it uses as much as digits as its factorization.

12494921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The square root of 12494921 is about 3534.8155538868. The cubic root of 12494921 is about 232.0480045828.

The spelling of 12494921 in words is "twelve million, four hundred ninety-four thousand, nine hundred twenty-one".