1142932128 has 96 divisors (see below), whose sum is σ = 3250699200. Its totient is φ = 351606528.

The previous prime is 1142932103. The next prime is 1142932201. The reversal of 1142932128 is 8212392411.

It is a tau number, because it is divible by the number of its divisors (96).

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, 208203 + ... + 213621.

It is an arithmetic number, because the mean of its divisors is an integer number (33861450).

Almost surely, 2^1142932128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142932128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625349600).

1142932128 is an abundant number, since it is smaller than the sum of its proper divisors (2107767072).

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

1142932128 is an equidigital number, since it uses as much as digits as its factorization.

1142932128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5471 (or 5437 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1142932128 is about 33807.2792161688. The cubic root of 1142932128 is about 1045.5387827795.

The spelling of 1142932128 in words is "one billion, one hundred forty-two million, nine hundred thirty-two thousand, one hundred twenty-eight".