142312784 has 20 divisors (see below), whose sum is σ = 276294816. Its totient is φ = 71010912.

The previous prime is 142312759. The next prime is 142312813. The reversal of 142312784 is 487213241.

It is a self number, because there is not a number n which added to its sum of digits gives 142312784.

It is a congruent number.

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, 794 + ... + 16889.

Almost surely, 2^142312784 is an apocalyptic number.

It is an amenable number.

142312784 is a deficient number, since it is larger than the sum of its proper divisors (133982032).

142312784 is a wasteful number, since it uses less digits than its factorization.

142312784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18194 (or 18188 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 142312784 is about 11929.4921937189. The cubic root of 142312784 is about 522.0931215771.

The spelling of 142312784 in words is "one hundred forty-two million, three hundred twelve thousand, seven hundred eighty-four".