142263222 has 16 divisors (see below), whose sum is σ = 299501760. Its totient is φ = 44925192.

The previous prime is 142263193. The next prime is 142263227. The reversal of 142263222 is 222362241.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 142263192 and 142263201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142263227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 623848 + ... + 624075.

It is an arithmetic number, because the mean of its divisors is an integer number (18718860).

Almost surely, 2^142263222 is an apocalyptic number.

142263222 is an abundant number, since it is smaller than the sum of its proper divisors (157238538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142263222 is a wasteful number, since it uses less digits than its factorization.

142263222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247947.

The product of its digits is 2304, while the sum is 24.

The square root of 142263222 is about 11927.4147240716. The cubic root of 142263222 is about 522.0325063065.

The spelling of 142263222 in words is "one hundred forty-two million, two hundred sixty-three thousand, two hundred twenty-two".