12749953 has 2 divisors, whose sum is σ = 12749954. Its totient is φ = 12749952.

The previous prime is 12749951. The next prime is 12750011. The reversal of 12749953 is 35994721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10837264 + 1912689 = 3292^2 + 1383^2 .

It is a cyclic number.

It is not a de Polignac number, because 12749953 - 2¹ = 12749951 is a prime.

It is a super-2 number, since 2×12749953² = 325122603004418, which contains 22 as substring.

Together with 12749951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12749951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6374976 + 6374977.

It is an arithmetic number, because the mean of its divisors is an integer number (6374977).

Almost surely, 2^12749953 is an apocalyptic number.

It is an amenable number.

12749953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12749953 is an equidigital number, since it uses as much as digits as its factorization.

12749953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 40.

The square root of 12749953 is about 3570.7076329490. The cubic root of 12749953 is about 233.6161493593.

The spelling of 12749953 in words is "twelve million, seven hundred forty-nine thousand, nine hundred fifty-three".