142052520 has 32 divisors (see below), whose sum is σ = 426157920. Its totient is φ = 37880640.

The previous prime is 142052513. The next prime is 142052551. The reversal of 142052520 is 25250241.

It is a happy number.

It is an unprimeable number.

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, 591766 + ... + 592005.

It is an arithmetic number, because the mean of its divisors is an integer number (13317435).

Almost surely, 2^142052520 is an apocalyptic number.

142052520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142052520 is an abundant number, since it is smaller than the sum of its proper divisors (284105400).

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

142052520 is a wasteful number, since it uses less digits than its factorization.

142052520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183785 (or 1183781 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 142052520 is about 11918.5787743338. The cubic root of 142052520 is about 521.7746564819.

The spelling of 142052520 in words is "one hundred forty-two million, fifty-two thousand, five hundred twenty".