13454621 has 2 divisors, whose sum is σ = 13454622. Its totient is φ = 13454620.

The previous prime is 13454611. The next prime is 13454629. The reversal of 13454621 is 12645431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 1413721 = 3470^2 + 1189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13454621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13454629) 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, 6727310 + 6727311.

It is an arithmetic number, because the mean of its divisors is an integer number (6727311).

Almost surely, 2^13454621 is an apocalyptic number.

It is an amenable number.

13454621 is a deficient number, since it is larger than the sum of its proper divisors (1).

13454621 is an equidigital number, since it uses as much as digits as its factorization.

13454621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 13454621 is about 3668.0541162856. The cubic root of 13454621 is about 237.8430632173.

The spelling of 13454621 in words is "thirteen million, four hundred fifty-four thousand, six hundred twenty-one".