1143578364 has 24 divisors (see below), whose sum is σ = 2669280768. Its totient is φ = 381059760.

The previous prime is 1143578357. The next prime is 1143578369. The reversal of 1143578364 is 4638753411.

It is a happy number.

1143578364 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143578369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22959 + ... + 53049.

It is an arithmetic number, because the mean of its divisors is an integer number (111220032).

Almost surely, 2^1143578364 is an apocalyptic number.

It is an amenable number.

1143578364 is an abundant number, since it is smaller than the sum of its proper divisors (1525702404).

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

1143578364 is a wasteful number, since it uses less digits than its factorization.

1143578364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33265 (or 33263 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 1143578364 is about 33816.8355113248. The cubic root of 1143578364 is about 1045.7358016224.

The spelling of 1143578364 in words is "one billion, one hundred forty-three million, five hundred seventy-eight thousand, three hundred sixty-four".