142502820 has 24 divisors (see below), whose sum is σ = 399008064. Its totient is φ = 38000736.

The previous prime is 142502813. The next prime is 142502887. The reversal of 142502820 is 28205241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187464 + ... + 1187583.

It is an arithmetic number, because the mean of its divisors is an integer number (16625336).

Almost surely, 2^142502820 is an apocalyptic number.

142502820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142502820 is an abundant number, since it is smaller than the sum of its proper divisors (256505244).

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

142502820 is a wasteful number, since it uses less digits than its factorization.

142502820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375059 (or 2375057 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 142502820 is about 11937.4545025311. The cubic root of 142502820 is about 522.3254088807.

The spelling of 142502820 in words is "one hundred forty-two million, five hundred two thousand, eight hundred twenty".