12575281 has 2 divisors, whose sum is σ = 12575282. Its totient is φ = 12575280.

The previous prime is 12575279. The next prime is 12575293. The reversal of 12575281 is 18257521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12531600 + 43681 = 3540^2 + 209^2 .

It is an emirp because it is prime and its reverse (18257521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12575281 - 2¹ = 12575279 is a prime.

It is a super-2 number, since 2×12575281² = 316275384457922, which contains 22 as substring.

Together with 12575279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12575231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6287640 + 6287641.

It is an arithmetic number, because the mean of its divisors is an integer number (6287641).

Almost surely, 2^12575281 is an apocalyptic number.

It is an amenable number.

12575281 is a deficient number, since it is larger than the sum of its proper divisors (1).

12575281 is an equidigital number, since it uses as much as digits as its factorization.

12575281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 31.

The square root of 12575281 is about 3546.1642657948. The cubic root of 12575281 is about 232.5444074424.

The spelling of 12575281 in words is "twelve million, five hundred seventy-five thousand, two hundred eighty-one".