40511113 has 4 divisors (see below), whose sum is σ = 40549140. Its totient is φ = 40473088.

The previous prime is 40511069. The next prime is 40511129. The reversal of 40511113 is 31111504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20548089 + 19963024 = 4533^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 40511113 - 2²¹ = 38413961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40511143) 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, 17368 + ... + 19561.

It is an arithmetic number, because the mean of its divisors is an integer number (10137285).

Almost surely, 2^40511113 is an apocalyptic number.

It is an amenable number.

40511113 is a deficient number, since it is larger than the sum of its proper divisors (38027).

40511113 is a wasteful number, since it uses less digits than its factorization.

40511113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38026.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 40511113 is about 6364.8340905321. The cubic root of 40511113 is about 343.4456802870.

Adding to 40511113 its reverse (31111504), we get a palindrome (71622617).

The spelling of 40511113 in words is "forty million, five hundred eleven thousand, one hundred thirteen".