142981286 has 16 divisors (see below), whose sum is σ = 245278464. Its totient is φ = 61235784.

The previous prime is 142981277. The next prime is 142981297. The reversal of 142981286 is 682189241.

It is a congruent number.

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, 26711 + ... + 31613.

It is an arithmetic number, because the mean of its divisors is an integer number (15329904).

Almost surely, 2^142981286 is an apocalyptic number.

142981286 is a deficient number, since it is larger than the sum of its proper divisors (102297178).

142981286 is a wasteful number, since it uses less digits than its factorization.

142981286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6995.

The product of its digits is 55296, while the sum is 41.

The square root of 142981286 is about 11957.4782458510. The cubic root of 142981286 is about 522.9093406366.

The spelling of 142981286 in words is "one hundred forty-two million, nine hundred eighty-one thousand, two hundred eighty-six".