142222004 has 6 divisors (see below), whose sum is σ = 248888514. Its totient is φ = 71111000.

The previous prime is 142221997. The next prime is 142222007. The reversal of 142222004 is 400222241.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 73994404 + 68227600 = 8602^2 + 8260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142222007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17777747 + ... + 17777754.

It is an arithmetic number, because the mean of its divisors is an integer number (41481419).

Almost surely, 2^142222004 is an apocalyptic number.

It is an amenable number.

142222004 is a deficient number, since it is larger than the sum of its proper divisors (106666510).

142222004 is a wasteful number, since it uses less digits than its factorization.

142222004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35555505 (or 35555503 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 142222004 is about 11925.6867307506. The cubic root of 142222004 is about 521.9820851835.

Adding to 142222004 its reverse (400222241), we get a palindrome (542444245).

The spelling of 142222004 in words is "one hundred forty-two million, two hundred twenty-two thousand, four".