142486530 has 16 divisors (see below), whose sum is σ = 341967744. Its totient is φ = 37996400.

The previous prime is 142486523. The next prime is 142486543. The reversal of 142486530 is 35684241.

It is a super-2 number, since 2×142486530² = 40604822462881800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142486491 and 142486500.

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 7 ways as a sum of consecutive naturals, for example, 2374746 + ... + 2374805.

It is an arithmetic number, because the mean of its divisors is an integer number (21372984).

Almost surely, 2^142486530 is an apocalyptic number.

142486530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142486530 is an abundant number, since it is smaller than the sum of its proper divisors (199481214).

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

142486530 is a wasteful number, since it uses less digits than its factorization.

142486530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749561.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 142486530 is about 11936.7721767654. The cubic root of 142486530 is about 522.3055051690.

The spelling of 142486530 in words is "one hundred forty-two million, four hundred eighty-six thousand, five hundred thirty".