142492520 has 32 divisors (see below), whose sum is σ = 322146720. Its totient is φ = 56723520.

The previous prime is 142492447. The next prime is 142492529. The reversal of 142492520 is 25294241.

It is not an unprimeable number, because it can be changed into a prime (142492529) 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, 2 + ... + 16881.

It is an arithmetic number, because the mean of its divisors is an integer number (10067085).

Almost surely, 2^142492520 is an apocalyptic number.

142492520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142492520 is an abundant number, since it is smaller than the sum of its proper divisors (179654200).

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

142492520 is a wasteful number, since it uses less digits than its factorization.

142492520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17105 (or 17101 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 142492520 is about 11937.0230794784. The cubic root of 142492520 is about 522.3128241441.

The spelling of 142492520 in words is "one hundred forty-two million, four hundred ninety-two thousand, five hundred twenty".