13022957 has 2 divisors, whose sum is σ = 13022958. Its totient is φ = 13022956.

The previous prime is 13022909. The next prime is 13022959. The reversal of 13022957 is 75922031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12524521 + 498436 = 3539^2 + 706^2 .

It is an emirp because it is prime and its reverse (75922031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13022957 - 2⁸ = 13022701 is a prime.

Together with 13022959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13022959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6511478 + 6511479.

It is an arithmetic number, because the mean of its divisors is an integer number (6511479).

Almost surely, 2^13022957 is an apocalyptic number.

It is an amenable number.

13022957 is a deficient number, since it is larger than the sum of its proper divisors (1).

13022957 is an equidigital number, since it uses as much as digits as its factorization.

13022957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 13022957 is about 3608.7334343229. The cubic root of 13022957 is about 235.2717965848.

Adding to 13022957 its reverse (75922031), we get a palindrome (88944988).

The spelling of 13022957 in words is "thirteen million, twenty-two thousand, nine hundred fifty-seven".