142542520 has 16 divisors (see below), whose sum is σ = 320720760. Its totient is φ = 57016992.

The previous prime is 142542497. The next prime is 142542551. The reversal of 142542520 is 25245241.

142542520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1781742 + ... + 1781821.

Almost surely, 2^142542520 is an apocalyptic number.

142542520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142542520 is an abundant number, since it is smaller than the sum of its proper divisors (178178240).

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

142542520 is a wasteful number, since it uses less digits than its factorization.

142542520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563574 (or 3563570 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 142542520 is about 11939.1172202973. The cubic root of 142542520 is about 522.3739094259.

Adding to 142542520 its reverse (25245241), we get a palindrome (167787761).

The spelling of 142542520 in words is "one hundred forty-two million, five hundred forty-two thousand, five hundred twenty".