142643504 has 40 divisors (see below), whose sum is σ = 282348000. Its totient is φ = 69797376.

The previous prime is 142643503. The next prime is 142643521. The reversal of 142643504 is 405346241.

It is not an unprimeable number, because it can be changed into a prime (142643503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154757 + ... + 155675.

It is an arithmetic number, because the mean of its divisors is an integer number (7058700).

Almost surely, 2^142643504 is an apocalyptic number.

It is an amenable number.

142643504 is a deficient number, since it is larger than the sum of its proper divisors (139704496).

142643504 is a wasteful number, since it uses less digits than its factorization.

142643504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 142643504 is about 11943.3455949328. The cubic root of 142643504 is about 522.4972386017.

Adding to 142643504 its reverse (405346241), we get a palindrome (547989745).

The spelling of 142643504 in words is "one hundred forty-two million, six hundred forty-three thousand, five hundred four".