13057433 has 2 divisors, whose sum is σ = 13057434. Its totient is φ = 13057432.

The previous prime is 13057403. The next prime is 13057439. The reversal of 13057433 is 33475031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11539609 + 1517824 = 3397^2 + 1232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13057433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13057439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6528716 + 6528717.

It is an arithmetic number, because the mean of its divisors is an integer number (6528717).

Almost surely, 2^13057433 is an apocalyptic number.

It is an amenable number.

13057433 is a deficient number, since it is larger than the sum of its proper divisors (1).

13057433 is an equidigital number, since it uses as much as digits as its factorization.

13057433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 13057433 is about 3613.5070222707. The cubic root of 13057433 is about 235.4792272853.

The spelling of 13057433 in words is "thirteen million, fifty-seven thousand, four hundred thirty-three".