142403222 has 8 divisors (see below), whose sum is σ = 230036016. Its totient is φ = 65724552.

The previous prime is 142403221. The next prime is 142403227. The reversal of 142403222 is 222304241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 142403194 and 142403203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142403221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2738498 + ... + 2738549.

It is an arithmetic number, because the mean of its divisors is an integer number (28754502).

Almost surely, 2^142403222 is an apocalyptic number.

142403222 is a deficient number, since it is larger than the sum of its proper divisors (87632794).

142403222 is a wasteful number, since it uses less digits than its factorization.

142403222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5477062.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142403222 is about 11933.2821134841. The cubic root of 142403222 is about 522.2036927148.

Adding to 142403222 its reverse (222304241), we get a palindrome (364707463).

The spelling of 142403222 in words is "one hundred forty-two million, four hundred three thousand, two hundred twenty-two".