13254821 has 2 divisors, whose sum is σ = 13254822. Its totient is φ = 13254820.

The previous prime is 13254803. The next prime is 13254833. The reversal of 13254821 is 12845231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8584900 + 4669921 = 2930^2 + 2161^2 .

It is a cyclic number.

It is not a de Polignac number, because 13254821 - 2¹⁴ = 13238437 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13254841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6627410 + 6627411.

It is an arithmetic number, because the mean of its divisors is an integer number (6627411).

Almost surely, 2^13254821 is an apocalyptic number.

It is an amenable number.

13254821 is a deficient number, since it is larger than the sum of its proper divisors (1).

13254821 is an equidigital number, since it uses as much as digits as its factorization.

13254821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

The square root of 13254821 is about 3640.7170996934. The cubic root of 13254821 is about 236.6598704213.

The spelling of 13254821 in words is "thirteen million, two hundred fifty-four thousand, eight hundred twenty-one".