142320004 has 12 divisors (see below), whose sum is σ = 249480000. Its totient is φ = 71040008.

The previous prime is 142319953. The next prime is 142320011. The reversal of 142320004 is 400023241.

It is a self number, because there is not a number n which added to its sum of digits gives 142320004.

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, 27304 + ... + 32095.

It is an arithmetic number, because the mean of its divisors is an integer number (20790000).

Almost surely, 2^142320004 is an apocalyptic number.

It is an amenable number.

142320004 is a deficient number, since it is larger than the sum of its proper divisors (107159996).

142320004 is a wasteful number, since it uses less digits than its factorization.

142320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60002 (or 60000 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 142320004 is about 11929.7948012529. The cubic root of 142320004 is about 522.1019506002.

Adding to 142320004 its reverse (400023241), we get a palindrome (542343245).

The spelling of 142320004 in words is "one hundred forty-two million, three hundred twenty thousand, four".