1143425724 has 48 divisors (see below), whose sum is σ = 3099134976. Its totient is φ = 321336000.

The previous prime is 1143425713. The next prime is 1143425737. The reversal of 1143425724 is 4275243411.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106452 + ... + 116699.

It is an arithmetic number, because the mean of its divisors is an integer number (64565312).

Almost surely, 2^1143425724 is an apocalyptic number.

1143425724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1143425724 is an abundant number, since it is smaller than the sum of its proper divisors (1955709252).

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

1143425724 is a wasteful number, since it uses less digits than its factorization.

1143425724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223226 (or 223224 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 1143425724 is about 33814.5785719710. The cubic root of 1143425724 is about 1045.6892727559.

The spelling of 1143425724 in words is "one billion, one hundred forty-three million, four hundred twenty-five thousand, seven hundred twenty-four".