142122442 has 24 divisors (see below), whose sum is σ = 270535680. Its totient is φ = 55371960.

The previous prime is 142122437. The next prime is 142122457. The reversal of 142122442 is 244221241.

142122442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64842 + ... + 66997.

It is an arithmetic number, because the mean of its divisors is an integer number (11272320).

Almost surely, 2^142122442 is an apocalyptic number.

142122442 is a deficient number, since it is larger than the sum of its proper divisors (128413238).

142122442 is a wasteful number, since it uses less digits than its factorization.

142122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131866 (or 131859 counting only the distinct ones).

The product of its digits is 1024, while the sum is 22.

The square root of 142122442 is about 11921.5117329976. The cubic root of 142122442 is about 521.8602528588.

Adding to 142122442 its reverse (244221241), we get a palindrome (386343683).

The spelling of 142122442 in words is "one hundred forty-two million, one hundred twenty-two thousand, four hundred forty-two".