1252243252 has 24 divisors (see below), whose sum is σ = 2361677696. Its totient is φ = 577546848.

The previous prime is 1252243247. The next prime is 1252243297. The reversal of 1252243252 is 2523422521.

It is a super-2 number, since 2×1252243252² = 3136226324359071008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1252243252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72433 + ... + 88039.

Almost surely, 2^1252243252 is an apocalyptic number.

It is an amenable number.

1252243252 is a deficient number, since it is larger than the sum of its proper divisors (1109434444).

1252243252 is a wasteful number, since it uses less digits than its factorization.

1252243252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17167 (or 17165 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 1252243252 is about 35387.0492129536. The cubic root of 1252243252 is about 1077.8613519145.

Adding to 1252243252 its reverse (2523422521), we get a palindrome (3775665773).

The spelling of 1252243252 in words is "one billion, two hundred fifty-two million, two hundred forty-three thousand, two hundred fifty-two".