140542158 has 32 divisors (see below), whose sum is σ = 291686400. Its totient is φ = 45096480.

The previous prime is 140542151. The next prime is 140542163. The reversal of 140542158 is 851245041.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140542151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35116 + ... + 38912.

It is an arithmetic number, because the mean of its divisors is an integer number (9115200).

Almost surely, 2^140542158 is an apocalyptic number.

140542158 is an abundant number, since it is smaller than the sum of its proper divisors (151144242).

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

140542158 is a wasteful number, since it uses less digits than its factorization.

140542158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4032.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 140542158 is about 11855.0477856481. The cubic root of 140542158 is about 519.9188211540.

Adding to 140542158 its reverse (851245041), we get a palindrome (991787199).

The spelling of 140542158 in words is "one hundred forty million, five hundred forty-two thousand, one hundred fifty-eight".