140542544 has 20 divisors (see below), whose sum is σ = 286633440. Its totient is φ = 66572640.

The previous prime is 140542541. The next prime is 140542559. The reversal of 140542544 is 445245041.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140542541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230852 + ... + 231459.

It is an arithmetic number, because the mean of its divisors is an integer number (14331672).

Almost surely, 2^140542544 is an apocalyptic number.

It is an amenable number.

140542544 is an abundant number, since it is smaller than the sum of its proper divisors (146090896).

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

140542544 is a wasteful number, since it uses less digits than its factorization.

140542544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462338 (or 462332 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 140542544 is about 11855.0640656219. The cubic root of 140542544 is about 519.9192971404.

Adding to 140542544 its reverse (445245041), we get a palindrome (585787585).

The spelling of 140542544 in words is "one hundred forty million, five hundred forty-two thousand, five hundred forty-four".