40941191 has 4 divisors (see below), whose sum is σ = 40960584. Its totient is φ = 40921800.

The previous prime is 40941139. The next prime is 40941193. The reversal of 40941191 is 19114904.

40941191 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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40941191 is a prime.

It is a super-2 number, since 2×40941191² = 3352362240996962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40941193) 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, 6080 + ... + 10901.

It is an arithmetic number, because the mean of its divisors is an integer number (10240146).

Almost surely, 2^40941191 is an apocalyptic number.

40941191 is a deficient number, since it is larger than the sum of its proper divisors (19393).

40941191 is a wasteful number, since it uses less digits than its factorization.

40941191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19392.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 40941191 is about 6398.5303781415. The cubic root of 40941191 is about 344.6567783134.

The spelling of 40941191 in words is "forty million, nine hundred forty-one thousand, one hundred ninety-one".