140142234 has 8 divisors (see below), whose sum is σ = 280284480. Its totient is φ = 46714076.

The previous prime is 140142173. The next prime is 140142251. The reversal of 140142234 is 432241041.

It is a sphenic number, since it is the product of 3 distinct primes.

140142234 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 140142234.

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 3 ways as a sum of consecutive naturals, for example, 11678514 + ... + 11678525.

It is an arithmetic number, because the mean of its divisors is an integer number (35035560).

Almost surely, 2^140142234 is an apocalyptic number.

140142234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140142234 is a wasteful number, since it uses less digits than its factorization.

140142234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23357044.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140142234 is about 11838.1685238892. The cubic root of 140142234 is about 519.4251957174.

Adding to 140142234 its reverse (432241041), we get a palindrome (572383275).

The spelling of 140142234 in words is "one hundred forty million, one hundred forty-two thousand, two hundred thirty-four".