1252143364 has 36 divisors (see below), whose sum is σ = 2357367040. Its totient is φ = 581742720.

The previous prime is 1252143349. The next prime is 1252143407. The reversal of 1252143364 is 4633412521.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84469 + ... + 98179.

Almost surely, 2^1252143364 is an apocalyptic number.

It is an amenable number.

1252143364 is a deficient number, since it is larger than the sum of its proper divisors (1105223676).

1252143364 is a wasteful number, since it uses less digits than its factorization.

1252143364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13828 (or 13809 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 1252143364 is about 35385.6378210143. The cubic root of 1252143364 is about 1077.8326918073.

Adding to 1252143364 its reverse (4633412521), we get a palindrome (5885555885).

The spelling of 1252143364 in words is "one billion, two hundred fifty-two million, one hundred forty-three thousand, three hundred sixty-four".