40140111 has 16 divisors (see below), whose sum is σ = 61820928. Its totient is φ = 22896000.

The previous prime is 40140109. The next prime is 40140161. The reversal of 40140111 is 11104104.

It is not a de Polignac number, because 40140111 - 2¹ = 40140109 is a prime.

It is a super-2 number, since 2×40140111² = 3222457022184642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40140101) 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, 35215 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (3863808).

Almost surely, 2^40140111 is an apocalyptic number.

40140111 is a deficient number, since it is larger than the sum of its proper divisors (21680817).

40140111 is a wasteful number, since it uses less digits than its factorization.

40140111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71582.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 40140111 is about 6335.6223845807. The cubic root of 40140111 is about 342.3940347417.

Adding to 40140111 its reverse (11104104), we get a palindrome (51244215).

The spelling of 40140111 in words is "forty million, one hundred forty thousand, one hundred eleven".