142985814 has 8 divisors (see below), whose sum is σ = 285971640. Its totient is φ = 47661936.

The previous prime is 142985807. The next prime is 142985867. The reversal of 142985814 is 418589241.

It is a sphenic number, since it is the product of 3 distinct primes.

142985814 is an admirable number.

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, 11915479 + ... + 11915490.

It is an arithmetic number, because the mean of its divisors is an integer number (35746455).

Almost surely, 2^142985814 is an apocalyptic number.

142985814 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142985814 is a wasteful number, since it uses less digits than its factorization.

142985814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23830974.

The product of its digits is 92160, while the sum is 42.

The square root of 142985814 is about 11957.6675819325. The cubic root of 142985814 is about 522.9148604930.

The spelling of 142985814 in words is "one hundred forty-two million, nine hundred eighty-five thousand, eight hundred fourteen".