142142664 has 32 divisors (see below), whose sum is σ = 362920320. Its totient is φ = 46372416.

The previous prime is 142142579. The next prime is 142142669. The reversal of 142142664 is 466241241.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142142669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61879 + ... + 64134.

It is an arithmetic number, because the mean of its divisors is an integer number (11341260).

Almost surely, 2^142142664 is an apocalyptic number.

It is an amenable number.

142142664 is an abundant number, since it is smaller than the sum of its proper divisors (220777656).

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

142142664 is a wasteful number, since it uses less digits than its factorization.

142142664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126069 (or 126065 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

The square root of 142142664 is about 11922.3598335229. The cubic root of 142142664 is about 521.8850027796.

The spelling of 142142664 in words is "one hundred forty-two million, one hundred forty-two thousand, six hundred sixty-four".