142500222 has 80 divisors (see below), whose sum is σ = 344211120. Its totient is φ = 43898112.

The previous prime is 142500221. The next prime is 142500251. The reversal of 142500222 is 222005241.

142500222 is a `hidden beast` number, since 142 + 500 + 2 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142500195 and 142500204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142500221) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 162048 + ... + 162924.

It is an arithmetic number, because the mean of its divisors is an integer number (4302639).

Almost surely, 2^142500222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142500222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172105560).

142500222 is an abundant number, since it is smaller than the sum of its proper divisors (201710898).

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

142500222 is a wasteful number, since it uses less digits than its factorization.

142500222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 142500222 is about 11937.3456848665. The cubic root of 142500222 is about 522.3222346519.

Adding to 142500222 its reverse (222005241), we get a palindrome (364505463).

The spelling of 142500222 in words is "one hundred forty-two million, five hundred thousand, two hundred twenty-two".