1252545213 has 8 divisors (see below), whose sum is σ = 1671955168. Its totient is φ = 834082704.

The previous prime is 1252545197. The next prime is 1252545233. The reversal of 1252545213 is 3125452521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252545213 - 2⁴ = 1252545197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252545233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233770 + ... + 239067.

It is an arithmetic number, because the mean of its divisors is an integer number (208994396).

Almost surely, 2^1252545213 is an apocalyptic number.

It is an amenable number.

1252545213 is a deficient number, since it is larger than the sum of its proper divisors (419409955).

1252545213 is an equidigital number, since it uses as much as digits as its factorization.

1252545213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473723.

The product of its digits is 12000, while the sum is 30.

The square root of 1252545213 is about 35391.3155025354. The cubic root of 1252545213 is about 1077.9479820304.

Adding to 1252545213 its reverse (3125452521), we get a palindrome (4377997734).

The spelling of 1252545213 in words is "one billion, two hundred fifty-two million, five hundred forty-five thousand, two hundred thirteen".