142442066 has 8 divisors (see below), whose sum is σ = 230098764. Its totient is φ = 65742480.

The previous prime is 142442029. The next prime is 142442071. The reversal of 142442066 is 660244241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139736041 + 2706025 = 11821^2 + 1645^2 .

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

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, 2739245 + ... + 2739296.

Almost surely, 2^142442066 is an apocalyptic number.

142442066 is a deficient number, since it is larger than the sum of its proper divisors (87656698).

142442066 is a wasteful number, since it uses less digits than its factorization.

142442066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478556.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 142442066 is about 11934.9095513959. The cubic root of 142442066 is about 522.2511697214.

The spelling of 142442066 in words is "one hundred forty-two million, four hundred forty-two thousand, sixty-six".