142233774 has 16 divisors (see below), whose sum is σ = 286640640. Its totient is φ = 47049080.

The previous prime is 142233731. The next prime is 142233787. The reversal of 142233774 is 477332241.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89694 + ... + 91265.

It is an arithmetic number, because the mean of its divisors is an integer number (17915040).

Almost surely, 2^142233774 is an apocalyptic number.

142233774 is an abundant number, since it is smaller than the sum of its proper divisors (144406866).

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

142233774 is a wasteful number, since it uses less digits than its factorization.

142233774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181095.

The product of its digits is 28224, while the sum is 33.

The square root of 142233774 is about 11926.1801931717. The cubic root of 142233774 is about 521.9964841736.

The spelling of 142233774 in words is "one hundred forty-two million, two hundred thirty-three thousand, seven hundred seventy-four".