1252724113 has 2 divisors, whose sum is σ = 1252724114. Its totient is φ = 1252724112.

The previous prime is 1252724089. The next prime is 1252724147. The reversal of 1252724113 is 3114272521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 947593089 + 305131024 = 30783^2 + 17468^2 .

It is an emirp because it is prime and its reverse (3114272521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252724113 - 2²¹ = 1250626961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252724173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626362056 + 626362057.

It is an arithmetic number, because the mean of its divisors is an integer number (626362057).

Almost surely, 2^1252724113 is an apocalyptic number.

It is an amenable number.

1252724113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252724113 is an equidigital number, since it uses as much as digits as its factorization.

1252724113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 1252724113 is about 35393.8428684990. The cubic root of 1252724113 is about 1077.9993003944. Note that the first 3 decimals are identical.

Adding to 1252724113 its reverse (3114272521), we get a palindrome (4366996634).

The spelling of 1252724113 in words is "one billion, two hundred fifty-two million, seven hundred twenty-four thousand, one hundred thirteen".