142542724 has 12 divisors (see below), whose sum is σ = 252963648. Its totient is φ = 70267400.

The previous prime is 142542709. The next prime is 142542733. The reversal of 142542724 is 427245241.

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 3 ways as a sum of consecutive naturals, for example, 250672 + ... + 251239.

It is an arithmetic number, because the mean of its divisors is an integer number (21080304).

Almost surely, 2^142542724 is an apocalyptic number.

It is an amenable number.

142542724 is a deficient number, since it is larger than the sum of its proper divisors (110420924).

142542724 is a wasteful number, since it uses less digits than its factorization.

142542724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501986 (or 501984 counting only the distinct ones).

The product of its digits is 17920, while the sum is 31.

The square root of 142542724 is about 11939.1257636395. The cubic root of 142542724 is about 522.3741586246.

Adding to 142542724 its reverse (427245241), we get a palindrome (569787965).

The spelling of 142542724 in words is "one hundred forty-two million, five hundred forty-two thousand, seven hundred twenty-four".