12573749 has 2 divisors, whose sum is σ = 12573750. Its totient is φ = 12573748.

The previous prime is 12573731. The next prime is 12573751. The reversal of 12573749 is 94737521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12567025 + 6724 = 3545^2 + 82^2 .

It is an emirp because it is prime and its reverse (94737521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12573749 - 2⁸ = 12573493 is a prime.

Together with 12573751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12573779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6286874 + 6286875.

It is an arithmetic number, because the mean of its divisors is an integer number (6286875).

Almost surely, 2^12573749 is an apocalyptic number.

It is an amenable number.

12573749 is a deficient number, since it is larger than the sum of its proper divisors (1).

12573749 is an equidigital number, since it uses as much as digits as its factorization.

12573749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 38.

The square root of 12573749 is about 3545.9482511734. The cubic root of 12573749 is about 232.5349637171.

The spelling of 12573749 in words is "twelve million, five hundred seventy-three thousand, seven hundred forty-nine".