1252232213 has 4 divisors (see below), whose sum is σ = 1263314028. Its totient is φ = 1241150400.

The previous prime is 1252232159. The next prime is 1252232231. The reversal of 1252232213 is 3122322521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 530933764 + 721298449 = 23042^2 + 26857^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252232213 - 2¹⁶ = 1252166677 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 (1252234213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5540738 + ... + 5540963.

It is an arithmetic number, because the mean of its divisors is an integer number (315828507).

Almost surely, 2^1252232213 is an apocalyptic number.

It is an amenable number.

1252232213 is a deficient number, since it is larger than the sum of its proper divisors (11081815).

1252232213 is a wasteful number, since it uses less digits than its factorization.

1252232213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11081814.

The product of its digits is 1440, while the sum is 23.

The square root of 1252232213 is about 35386.8932374686. The cubic root of 1252232213 is about 1077.8581846527.

Adding to 1252232213 its reverse (3122322521), we get a palindrome (4374554734).

The spelling of 1252232213 in words is "one billion, two hundred fifty-two million, two hundred thirty-two thousand, two hundred thirteen".