142909764 has 96 divisors (see below), whose sum is σ = 363412224. Its totient is φ = 43591680.

The previous prime is 142909759. The next prime is 142909777. The reversal of 142909764 is 467909241.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 825982 + ... + 826154.

It is an arithmetic number, because the mean of its divisors is an integer number (3785544).

Almost surely, 2^142909764 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 142909764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181706112).

142909764 is an abundant number, since it is smaller than the sum of its proper divisors (220502460).

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

142909764 is a wasteful number, since it uses less digits than its factorization.

142909764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 142909764 is about 11954.4871910091. The cubic root of 142909764 is about 522.8221363116.

The spelling of 142909764 in words is "one hundred forty-two million, nine hundred nine thousand, seven hundred sixty-four".