142666274 has 16 divisors (see below), whose sum is σ = 215631936. Its totient is φ = 70791600.

The previous prime is 142666267. The next prime is 142666289. The reversal of 142666274 is 472666241.

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, 215504 + ... + 216164.

It is an arithmetic number, because the mean of its divisors is an integer number (13476996).

Almost surely, 2^142666274 is an apocalyptic number.

142666274 is a deficient number, since it is larger than the sum of its proper divisors (72965662).

142666274 is a wasteful number, since it uses less digits than its factorization.

142666274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its digits is 96768, while the sum is 38.

The square root of 142666274 is about 11944.2988073809. The cubic root of 142666274 is about 522.5250389777.

The spelling of 142666274 in words is "one hundred forty-two million, six hundred sixty-six thousand, two hundred seventy-four".