140221042 has 16 divisors (see below), whose sum is σ = 226739520. Its totient is φ = 64652112.

The previous prime is 140221033. The next prime is 140221043. The reversal of 140221042 is 240122041.

140221042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140221043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31809 + ... + 35947.

It is an arithmetic number, because the mean of its divisors is an integer number (14171220).

Almost surely, 2^140221042 is an apocalyptic number.

140221042 is a deficient number, since it is larger than the sum of its proper divisors (86518478).

140221042 is a wasteful number, since it uses less digits than its factorization.

140221042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5457.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 140221042 is about 11841.4966114930. The cubic root of 140221042 is about 519.5225425079.

Adding to 140221042 its reverse (240122041), we get a palindrome (380343083).

Subtracting 140221042 from its reverse (240122041), we obtain a palindrome (99900999).

The spelling of 140221042 in words is "one hundred forty million, two hundred twenty-one thousand, forty-two".