12914557 has 2 divisors, whose sum is σ = 12914558. Its totient is φ = 12914556.

The previous prime is 12914537. The next prime is 12914581. The reversal of 12914557 is 75541921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 622521 = 3506^2 + 789^2 .

It is a cyclic number.

It is not a de Polignac number, because 12914557 - 2¹¹ = 12912509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12914527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6457278 + 6457279.

It is an arithmetic number, because the mean of its divisors is an integer number (6457279).

Almost surely, 2^12914557 is an apocalyptic number.

It is an amenable number.

12914557 is a deficient number, since it is larger than the sum of its proper divisors (1).

12914557 is an equidigital number, since it uses as much as digits as its factorization.

12914557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 34.

The square root of 12914557 is about 3593.6829298089. The cubic root of 12914557 is about 234.6171947820.

The spelling of 12914557 in words is "twelve million, nine hundred fourteen thousand, five hundred fifty-seven".