40811061 has 4 divisors (see below), whose sum is σ = 54414752. Its totient is φ = 27207372.

The previous prime is 40811047. The next prime is 40811063. The reversal of 40811061 is 16011804.

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 40811061 - 2⁷ = 40810933 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 (40811063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6801841 + ... + 6801846.

It is an arithmetic number, because the mean of its divisors is an integer number (13603688).

Almost surely, 2^40811061 is an apocalyptic number.

It is an amenable number.

40811061 is a deficient number, since it is larger than the sum of its proper divisors (13603691).

40811061 is a wasteful number, since it uses less digits than its factorization.

40811061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13603690.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 40811061 is about 6388.3535437544. The cubic root of 40811061 is about 344.2912313117.

Adding to 40811061 its reverse (16011804), we get a palindrome (56822865).

The spelling of 40811061 in words is "forty million, eight hundred eleven thousand, sixty-one".