143145724 has 12 divisors (see below), whose sum is σ = 258586048. Its totient is φ = 69264000.

The previous prime is 143145689. The next prime is 143145733. The reversal of 143145724 is 427541341.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577077 + ... + 577324.

Almost surely, 2^143145724 is an apocalyptic number.

It is an amenable number.

143145724 is a deficient number, since it is larger than the sum of its proper divisors (115440324).

143145724 is a wasteful number, since it uses less digits than its factorization.

143145724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154436 (or 1154434 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 143145724 is about 11964.3522181521. The cubic root of 143145724 is about 523.1097240255.

The spelling of 143145724 in words is "one hundred forty-three million, one hundred forty-five thousand, seven hundred twenty-four".