142252144 has 10 divisors (see below), whose sum is σ = 275613560. Its totient is φ = 71126064.

The previous prime is 142252109. The next prime is 142252151. The reversal of 142252144 is 441252241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4445364 + ... + 4445395.

It is an arithmetic number, because the mean of its divisors is an integer number (27561356).

Almost surely, 2^142252144 is an apocalyptic number.

It is an amenable number.

142252144 is a deficient number, since it is larger than the sum of its proper divisors (133361416).

142252144 is an equidigital number, since it uses as much as digits as its factorization.

142252144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8890767 (or 8890761 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 142252144 is about 11926.9503226936. The cubic root of 142252144 is about 522.0189557764.

The spelling of 142252144 in words is "one hundred forty-two million, two hundred fifty-two thousand, one hundred forty-four".