142422004 has 6 divisors (see below), whose sum is σ = 249238514. Its totient is φ = 71211000.

The previous prime is 142421999. The next prime is 142422011. The reversal of 142422004 is 400224241.

It can be written as a sum of positive squares in only one way, i.e., 125216100 + 17205904 = 11190^2 + 4148^2 .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17802747 + ... + 17802754.

Almost surely, 2^142422004 is an apocalyptic number.

It is an amenable number.

142422004 is a deficient number, since it is larger than the sum of its proper divisors (106816510).

142422004 is a wasteful number, since it uses less digits than its factorization.

142422004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35605505 (or 35605503 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 142422004 is about 11934.0690462222. The cubic root of 142422004 is about 522.2266500572.

Adding to 142422004 its reverse (400224241), we get a palindrome (542646245).

The spelling of 142422004 in words is "one hundred forty-two million, four hundred twenty-two thousand, four".