40817141 has 2 divisors, whose sum is σ = 40817142. Its totient is φ = 40817140.

The previous prime is 40817093. The next prime is 40817143. The reversal of 40817141 is 14171804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36857041 + 3960100 = 6071^2 + 1990^2 .

It is a cyclic number.

It is not a de Polignac number, because 40817141 - 2¹⁴ = 40800757 is a prime.

Together with 40817143, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40817141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40817143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408570 + 20408571.

It is an arithmetic number, because the mean of its divisors is an integer number (20408571).

Almost surely, 2^40817141 is an apocalyptic number.

It is an amenable number.

40817141 is a deficient number, since it is larger than the sum of its proper divisors (1).

40817141 is an equidigital number, since it uses as much as digits as its factorization.

40817141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 40817141 is about 6388.8293919935. The cubic root of 40817141 is about 344.3083278757.

Adding to 40817141 its reverse (14171804), we get a palindrome (54988945).

The spelling of 40817141 in words is "forty million, eight hundred seventeen thousand, one hundred forty-one".