1252213265 has 8 divisors (see below), whose sum is σ = 1567988928. Its totient is φ = 958215280.

The previous prime is 1252213247. The next prime is 1252213273. The reversal of 1252213265 is 5623122521.

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

It is not a de Polignac number, because 1252213265 - 2⁶ = 1252213201 is a prime.

It is a super-2 number, since 2×1252213265² = 3136076122083920450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5444291 + ... + 5444520.

It is an arithmetic number, because the mean of its divisors is an integer number (195998616).

Almost surely, 2^1252213265 is an apocalyptic number.

It is an amenable number.

1252213265 is a deficient number, since it is larger than the sum of its proper divisors (315775663).

1252213265 is a wasteful number, since it uses less digits than its factorization.

1252213265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888839.

The product of its digits is 7200, while the sum is 29.

The square root of 1252213265 is about 35386.6255102122. The cubic root of 1252213265 is about 1077.8527481318.

Adding to 1252213265 its reverse (5623122521), we get a palindrome (6875335786).

The spelling of 1252213265 in words is "one billion, two hundred fifty-two million, two hundred thirteen thousand, two hundred sixty-five".