41781941 has 2 divisors, whose sum is σ = 41781942. Its totient is φ = 41781940.

The previous prime is 41781913. The next prime is 41781959. The reversal of 41781941 is 14918714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28313041 + 13468900 = 5321^2 + 3670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41781941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41781541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20890970 + 20890971.

It is an arithmetic number, because the mean of its divisors is an integer number (20890971).

Almost surely, 2^41781941 is an apocalyptic number.

It is an amenable number.

41781941 is a deficient number, since it is larger than the sum of its proper divisors (1).

41781941 is an equidigital number, since it uses as much as digits as its factorization.

41781941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 35.

The square root of 41781941 is about 6463.8951878879. The cubic root of 41781941 is about 347.0000498302. Note that the first 4 decimals are identical.

The spelling of 41781941 in words is "forty-one million, seven hundred eighty-one thousand, nine hundred forty-one".