13750657 has 2 divisors, whose sum is σ = 13750658. Its totient is φ = 13750656.

The previous prime is 13750609. The next prime is 13750697. The reversal of 13750657 is 75605731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12173121 + 1577536 = 3489^2 + 1256^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13750657 is a prime.

It is not a weakly prime, because it can be changed into another prime (13750697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6875328 + 6875329.

It is an arithmetic number, because the mean of its divisors is an integer number (6875329).

Almost surely, 2^13750657 is an apocalyptic number.

It is an amenable number.

13750657 is a deficient number, since it is larger than the sum of its proper divisors (1).

13750657 is an equidigital number, since it uses as much as digits as its factorization.

13750657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 13750657 is about 3708.1878323515. The cubic root of 13750657 is about 239.5748085049.

The spelling of 13750657 in words is "thirteen million, seven hundred fifty thousand, six hundred fifty-seven".