40542141 has 16 divisors (see below), whose sum is σ = 56188928. Its totient is φ = 25974000.

The previous prime is 40542119. The next prime is 40542167. The reversal of 40542141 is 14124504.

It is a happy number.

It is not a de Polignac number, because 40542141 - 2⁹ = 40541629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40542101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12600 + ... + 15486.

It is an arithmetic number, because the mean of its divisors is an integer number (3511808).

Almost surely, 2^40542141 is an apocalyptic number.

It is an amenable number.

40542141 is a deficient number, since it is larger than the sum of its proper divisors (15646787).

40542141 is a wasteful number, since it uses less digits than its factorization.

40542141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40542141 is about 6367.2710795128. The cubic root of 40542141 is about 343.5333411147.

Adding to 40542141 its reverse (14124504), we get a palindrome (54666645).

The spelling of 40542141 in words is "forty million, five hundred forty-two thousand, one hundred forty-one".