142417986 has 16 divisors (see below), whose sum is σ = 286020768. Its totient is φ = 47275200.

The previous prime is 142417973. The next prime is 142418009. The reversal of 142417986 is 689714241.

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, 47800 + ... + 50691.

It is an arithmetic number, because the mean of its divisors is an integer number (17876298).

Almost surely, 2^142417986 is an apocalyptic number.

142417986 is an abundant number, since it is smaller than the sum of its proper divisors (143602782).

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

142417986 is a wasteful number, since it uses less digits than its factorization.

142417986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98737.

The product of its digits is 96768, while the sum is 42.

The square root of 142417986 is about 11933.9007034582. The cubic root of 142417986 is about 522.2217390033.

The spelling of 142417986 in words is "one hundred forty-two million, four hundred seventeen thousand, nine hundred eighty-six".