142312666 has 8 divisors (see below), whose sum is σ = 213524064. Its totient is φ = 71137980.

The previous prime is 142312633. The next prime is 142312699. The reversal of 142312666 is 666213241.

142312666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142312633) and next prime (142312699).

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, 4731 + ... + 17521.

It is an arithmetic number, because the mean of its divisors is an integer number (26690508).

Almost surely, 2^142312666 is an apocalyptic number.

142312666 is a deficient number, since it is larger than the sum of its proper divisors (71211398).

142312666 is a wasteful number, since it uses less digits than its factorization.

142312666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18356.

The product of its digits is 10368, while the sum is 31.

The square root of 142312666 is about 11929.4872479918. The cubic root of 142312666 is about 522.0929772775.

The spelling of 142312666 in words is "one hundred forty-two million, three hundred twelve thousand, six hundred sixty-six".