40717541 has 2 divisors, whose sum is σ = 40717542. Its totient is φ = 40717540.

The previous prime is 40717531. The next prime is 40717543. The reversal of 40717541 is 14571704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32821441 + 7896100 = 5729^2 + 2810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40717541 is a prime.

Together with 40717543, 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 (40717543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20358770 + 20358771.

It is an arithmetic number, because the mean of its divisors is an integer number (20358771).

Almost surely, 2^40717541 is an apocalyptic number.

It is an amenable number.

40717541 is a deficient number, since it is larger than the sum of its proper divisors (1).

40717541 is an equidigital number, since it uses as much as digits as its factorization.

40717541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 40717541 is about 6381.0297758277. The cubic root of 40717541 is about 344.0280449688.

The spelling of 40717541 in words is "forty million, seven hundred seventeen thousand, five hundred forty-one".