1252544412 has 24 divisors (see below), whose sum is σ = 3340118656. Its totient is φ = 357869808.

The previous prime is 1252544399. The next prime is 1252544443. The reversal of 1252544412 is 2144452521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252544412.

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, 7455538 + ... + 7455705.

Almost surely, 2^1252544412 is an apocalyptic number.

1252544412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1252544412 is an abundant number, since it is smaller than the sum of its proper divisors (2087574244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252544412 is a wasteful number, since it uses less digits than its factorization.

1252544412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911257 (or 14911255 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 1252544412 is about 35391.3041861981. The cubic root of 1252544412 is about 1077.9477522485.

Adding to 1252544412 its reverse (2144452521), we get a palindrome (3396996933).

The spelling of 1252544412 in words is "one billion, two hundred fifty-two million, five hundred forty-four thousand, four hundred twelve".