142347664 has 80 divisors (see below), whose sum is σ = 303248448. Its totient is φ = 64475136.

The previous prime is 142347659. The next prime is 142347679. The reversal of 142347664 is 466743241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1330299 + ... + 1330405.

Almost surely, 2^142347664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142347664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151624224).

142347664 is an abundant number, since it is smaller than the sum of its proper divisors (160900784).

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

142347664 is a wasteful number, since it uses less digits than its factorization.

142347664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 266 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 142347664 is about 11930.9540272352. The cubic root of 142347664 is about 522.1357720451.

The spelling of 142347664 in words is "one hundred forty-two million, three hundred forty-seven thousand, six hundred sixty-four".