142435222 has 4 divisors (see below), whose sum is σ = 213652836. Its totient is φ = 71217610.

The previous prime is 142435219. The next prime is 142435253. The reversal of 142435222 is 222534241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222534241 = 10079 ⋅22079.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35608804 + ... + 35608807.

It is an arithmetic number, because the mean of its divisors is an integer number (53413209).

Almost surely, 2^142435222 is an apocalyptic number.

142435222 is a deficient number, since it is larger than the sum of its proper divisors (71217614).

142435222 is an equidigital number, since it uses as much as digits as its factorization.

142435222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71217613.

The product of its digits is 3840, while the sum is 25.

The square root of 142435222 is about 11934.6228260469. The cubic root of 142435222 is about 522.2428052816.

Adding to 142435222 its reverse (222534241), we get a palindrome (364969463).

The spelling of 142435222 in words is "one hundred forty-two million, four hundred thirty-five thousand, two hundred twenty-two".