13079021 has 2 divisors, whose sum is σ = 13079022. Its totient is φ = 13079020.

The previous prime is 13078999. The next prime is 13079023. The reversal of 13079021 is 12097031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7022500 + 6056521 = 2650^2 + 2461^2 .

It is a cyclic number.

It is not a de Polignac number, because 13079021 - 2¹⁰ = 13077997 is a prime.

It is a Sophie Germain prime.

Together with 13079023, it forms a pair of twin primes.

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 (13079023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6539510 + 6539511.

It is an arithmetic number, because the mean of its divisors is an integer number (6539511).

Almost surely, 2^13079021 is an apocalyptic number.

It is an amenable number.

13079021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13079021 is an equidigital number, since it uses as much as digits as its factorization.

13079021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 13079021 is about 3616.4929144131. The cubic root of 13079021 is about 235.6089293122.

The spelling of 13079021 in words is "thirteen million, seventy-nine thousand, twenty-one".