1143347844 has 12 divisors (see below), whose sum is σ = 2667811664. Its totient is φ = 381115944.

The previous prime is 1143347837. The next prime is 1143347851. The reversal of 1143347844 is 4487433411.

It is an interprime number because it is at equal distance from previous prime (1143347837) and next prime (1143347851).

It is a tau number, because it is divible by the number of its divisors (12).

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, 47639482 + ... + 47639505.

Almost surely, 2^1143347844 is an apocalyptic number.

It is an amenable number.

1143347844 is an abundant number, since it is smaller than the sum of its proper divisors (1524463820).

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

1143347844 is a wasteful number, since it uses less digits than its factorization.

1143347844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95278994 (or 95278992 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 1143347844 is about 33813.4269780512. The cubic root of 1143347844 is about 1045.6655311964.

The spelling of 1143347844 in words is "one billion, one hundred forty-three million, three hundred forty-seven thousand, eight hundred forty-four".