142221034 has 16 divisors (see below), whose sum is σ = 220197600. Its totient is φ = 68858064.

The previous prime is 142221019. The next prime is 142221043. The reversal of 142221034 is 430122241.

142221034 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089 + ... + 16900.

It is an arithmetic number, because the mean of its divisors is an integer number (13762350).

Almost surely, 2^142221034 is an apocalyptic number.

142221034 is a deficient number, since it is larger than the sum of its proper divisors (77976566).

142221034 is a wasteful number, since it uses less digits than its factorization.

142221034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 142221034 is about 11925.6460621637. The cubic root of 142221034 is about 521.9808984853.

Adding to 142221034 its reverse (430122241), we get a palindrome (572343275).

The spelling of 142221034 in words is "one hundred forty-two million, two hundred twenty-one thousand, thirty-four".