140621242 has 16 divisors (see below), whose sum is σ = 222278400. Its totient is φ = 66536640.

The previous prime is 140621233. The next prime is 140621281. The reversal of 140621242 is 242126041.

It is a happy number.

140621242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50359 + ... + 53077.

It is an arithmetic number, because the mean of its divisors is an integer number (13892400).

Almost surely, 2^140621242 is an apocalyptic number.

140621242 is a deficient number, since it is larger than the sum of its proper divisors (81657158).

140621242 is a wasteful number, since it uses less digits than its factorization.

140621242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4101.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 140621242 is about 11858.3827733802. The cubic root of 140621242 is about 520.0163234521.

Adding to 140621242 its reverse (242126041), we get a palindrome (382747283).

The spelling of 140621242 in words is "one hundred forty million, six hundred twenty-one thousand, two hundred forty-two".