40983191 has 2 divisors, whose sum is σ = 40983192. Its totient is φ = 40983190.

The previous prime is 40983169. The next prime is 40983193. The reversal of 40983191 is 19138904.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40983191 - 2⁶ = 40983127 is a prime.

Together with 40983193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40983193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20491595 + 20491596.

It is an arithmetic number, because the mean of its divisors is an integer number (20491596).

Almost surely, 2^40983191 is an apocalyptic number.

40983191 is a deficient number, since it is larger than the sum of its proper divisors (1).

40983191 is an equidigital number, since it uses as much as digits as its factorization.

40983191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 40983191 is about 6401.8115404938. The cubic root of 40983191 is about 344.7745947649.

The spelling of 40983191 in words is "forty million, nine hundred eighty-three thousand, one hundred ninety-one".