40831113 has 4 divisors (see below), whose sum is σ = 54441488. Its totient is φ = 27220740.

The previous prime is 40831099. The next prime is 40831117. The reversal of 40831113 is 31113804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40831113 - 2¹⁰ = 40830089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40831113.

It is not an unprimeable number, because it can be changed into a prime (40831117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6805183 + ... + 6805188.

It is an arithmetic number, because the mean of its divisors is an integer number (13610372).

Almost surely, 2^40831113 is an apocalyptic number.

It is an amenable number.

40831113 is a deficient number, since it is larger than the sum of its proper divisors (13610375).

40831113 is a wasteful number, since it uses less digits than its factorization.

40831113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13610374.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 40831113 is about 6389.9227694863. The cubic root of 40831113 is about 344.3476097969.

Adding to 40831113 its reverse (31113804), we get a palindrome (71944917).

The spelling of 40831113 in words is "forty million, eight hundred thirty-one thousand, one hundred thirteen".