13334921 has 2 divisors, whose sum is σ = 13334922. Its totient is φ = 13334920.

The previous prime is 13334897. The next prime is 13334927. The reversal of 13334921 is 12943331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11485321 + 1849600 = 3389^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 13334921 - 2⁶ = 13334857 is a prime.

It is not a weakly prime, because it can be changed into another prime (13334927) 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 as a sum of consecutive naturals, namely, 6667460 + 6667461.

It is an arithmetic number, because the mean of its divisors is an integer number (6667461).

Almost surely, 2^13334921 is an apocalyptic number.

It is an amenable number.

13334921 is a deficient number, since it is larger than the sum of its proper divisors (1).

13334921 is an equidigital number, since it uses as much as digits as its factorization.

13334921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 13334921 is about 3651.7011104415. The cubic root of 13334921 is about 237.1356318607.

The spelling of 13334921 in words is "thirteen million, three hundred thirty-four thousand, nine hundred twenty-one".