142842724 has 24 divisors (see below), whose sum is σ = 255843000. Its totient is φ = 69761280.

The previous prime is 142842659. The next prime is 142842743. The reversal of 142842724 is 427248241.

It can be written as a sum of positive squares in 4 ways, for example, as 14745600 + 128097124 = 3840^2 + 11318^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 142842724.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34392 + ... + 38320.

It is an arithmetic number, because the mean of its divisors is an integer number (10660125).

Almost surely, 2^142842724 is an apocalyptic number.

It is an amenable number.

142842724 is a deficient number, since it is larger than the sum of its proper divisors (113000276).

142842724 is a wasteful number, since it uses less digits than its factorization.

142842724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4141 counting only the distinct ones).

The product of its digits is 28672, while the sum is 34.

The square root of 142842724 is about 11951.6828940530. The cubic root of 142842724 is about 522.7403703142.

The spelling of 142842724 in words is "one hundred forty-two million, eight hundred forty-two thousand, seven hundred twenty-four".