140440111 has 16 divisors (see below), whose sum is σ = 171049536. Its totient is φ = 112559616.

The previous prime is 140440109. The next prime is 140440121. The reversal of 140440111 is 111044041.

It is a cyclic number.

It is not a de Polignac number, because 140440111 - 2¹ = 140440109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140440121) 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, 14925 + ... + 22441.

It is an arithmetic number, because the mean of its divisors is an integer number (10690596).

Almost surely, 2^140440111 is an apocalyptic number.

140440111 is a deficient number, since it is larger than the sum of its proper divisors (30609425).

140440111 is a wasteful number, since it uses less digits than its factorization.

140440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 140440111 is about 11850.7430568720. The cubic root of 140440111 is about 519.7929538148.

Adding to 140440111 its reverse (111044041), we get a palindrome (251484152).

The spelling of 140440111 in words is "one hundred forty million, four hundred forty thousand, one hundred eleven".