1252143152 has 20 divisors (see below), whose sum is σ = 2612645280. Its totient is φ = 577912128.

The previous prime is 1252143133. The next prime is 1252143163. The reversal of 1252143152 is 2513412521.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009752 + ... + 3010167.

It is an arithmetic number, because the mean of its divisors is an integer number (130632264).

Almost surely, 2^1252143152 is an apocalyptic number.

It is an amenable number.

1252143152 is an abundant number, since it is smaller than the sum of its proper divisors (1360502128).

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

1252143152 is a wasteful number, since it uses less digits than its factorization.

1252143152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6019940 (or 6019934 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1252143152 is about 35385.6348254486. The cubic root of 1252143152 is about 1077.8326309781.

Adding to 1252143152 its reverse (2513412521), we get a palindrome (3765555673).

The spelling of 1252143152 in words is "one billion, two hundred fifty-two million, one hundred forty-three thousand, one hundred fifty-two".