40001113 has 4 divisors (see below), whose sum is σ = 40016128. Its totient is φ = 39986100.

The previous prime is 40001111. The next prime is 40001161. The reversal of 40001113 is 31110004.

It is a happy number.

40001113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 40001113 - 2¹ = 40001111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40001113.

It is not an unprimeable number, because it can be changed into a prime (40001111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2313 + ... + 9238.

It is an arithmetic number, because the mean of its divisors is an integer number (10004032).

Almost surely, 2^40001113 is an apocalyptic number.

It is an amenable number.

40001113 is a deficient number, since it is larger than the sum of its proper divisors (15015).

40001113 is a wasteful number, since it uses less digits than its factorization.

40001113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15014.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 40001113 is about 6324.6433101006. The cubic root of 40001113 is about 341.9983613113.

Adding to 40001113 its reverse (31110004), we get a palindrome (71111117).

The spelling of 40001113 in words is "forty million, one thousand, one hundred thirteen".