13146257 has 2 divisors, whose sum is σ = 13146258. Its totient is φ = 13146256.

The previous prime is 13146247. The next prime is 13146277. The reversal of 13146257 is 75264131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8288641 + 4857616 = 2879^2 + 2204^2 .

It is an emirp because it is prime and its reverse (75264131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13146257 - 2⁴ = 13146241 is a prime.

It is a super-2 number, since 2×13146257² = 345648146220098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13146247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6573128 + 6573129.

It is an arithmetic number, because the mean of its divisors is an integer number (6573129).

Almost surely, 2^13146257 is an apocalyptic number.

It is an amenable number.

13146257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13146257 is an equidigital number, since it uses as much as digits as its factorization.

13146257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 13146257 is about 3625.7767443680. The cubic root of 13146257 is about 236.0119751177.

The spelling of 13146257 in words is "thirteen million, one hundred forty-six thousand, two hundred fifty-seven".