143831564 has 12 divisors (see below), whose sum is σ = 253688064. Its totient is φ = 71349264.

The previous prime is 143831563. The next prime is 143831573. The reversal of 143831564 is 465138341.

143831564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (143831563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141059 + ... + 142074.

It is an arithmetic number, because the mean of its divisors is an integer number (21140672).

Almost surely, 2^143831564 is an apocalyptic number.

It is an amenable number.

143831564 is a deficient number, since it is larger than the sum of its proper divisors (109856500).

143831564 is a wasteful number, since it uses less digits than its factorization.

143831564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283264 (or 283262 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 143831564 is about 11992.9797798545. The cubic root of 143831564 is about 523.9438346654.

The spelling of 143831564 in words is "one hundred forty-three million, eight hundred thirty-one thousand, five hundred sixty-four".