142533420 has 24 divisors (see below), whose sum is σ = 399093744. Its totient is φ = 38008896.

The previous prime is 142533409. The next prime is 142533437. The reversal of 142533420 is 24335241.

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, 1187719 + ... + 1187838.

It is an arithmetic number, because the mean of its divisors is an integer number (16628906).

Almost surely, 2^142533420 is an apocalyptic number.

142533420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142533420 is an abundant number, since it is smaller than the sum of its proper divisors (256560324).

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

142533420 is a wasteful number, since it uses less digits than its factorization.

142533420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2375569 (or 2375567 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 142533420 is about 11938.7361140114. The cubic root of 142533420 is about 522.3627929680.

Adding to 142533420 its reverse (24335241), we get a palindrome (166868661).

The spelling of 142533420 in words is "one hundred forty-two million, five hundred thirty-three thousand, four hundred twenty".