1143752616 has 128 divisors (see below), whose sum is σ = 3246566400. Its totient is φ = 373014720.

The previous prime is 1143752593. The next prime is 1143752627. The reversal of 1143752616 is 6162573411.

1143752616 is a `hidden beast` number, since 1 + 1 + 4 + 37 + 5 + 2 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2348325 + ... + 2348811.

It is an arithmetic number, because the mean of its divisors is an integer number (25363800).

Almost surely, 2^1143752616 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 1143752616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1623283200).

1143752616 is an abundant number, since it is smaller than the sum of its proper divisors (2102813784).

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

1143752616 is a wasteful number, since it uses less digits than its factorization.

1143752616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 706 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 1143752616 is about 33819.4118222065. The cubic root of 1143752616 is about 1045.7889133595.

The spelling of 1143752616 in words is "one billion, one hundred forty-three million, seven hundred fifty-two thousand, six hundred sixteen".