13774457 has 2 divisors, whose sum is σ = 13774458. Its totient is φ = 13774456.

The previous prime is 13774451. The next prime is 13774489. The reversal of 13774457 is 75447731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11669056 + 2105401 = 3416^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 13774457 - 2⁶ = 13774393 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13774457.

It is not a weakly prime, because it can be changed into another prime (13774451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6887228 + 6887229.

It is an arithmetic number, because the mean of its divisors is an integer number (6887229).

Almost surely, 2^13774457 is an apocalyptic number.

It is an amenable number.

13774457 is a deficient number, since it is larger than the sum of its proper divisors (1).

13774457 is an equidigital number, since it uses as much as digits as its factorization.

13774457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82320, while the sum is 38.

The square root of 13774457 is about 3711.3955596244. The cubic root of 13774457 is about 239.7129496363.

The spelling of 13774457 in words is "thirteen million, seven hundred seventy-four thousand, four hundred fifty-seven".