41801381 has 2 divisors, whose sum is σ = 41801382. Its totient is φ = 41801380.

The previous prime is 41801363. The next prime is 41801399. The reversal of 41801381 is 18310814.

It is a balanced prime because it is at equal distance from previous prime (41801363) and next prime (41801399).

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 1985281 = 6310^2 + 1409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41801381 is a prime.

It is a super-2 number, since 2×41801381² = 3494710907014322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 41801381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41801581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20900690 + 20900691.

It is an arithmetic number, because the mean of its divisors is an integer number (20900691).

Almost surely, 2^41801381 is an apocalyptic number.

It is an amenable number.

41801381 is a deficient number, since it is larger than the sum of its proper divisors (1).

41801381 is an equidigital number, since it uses as much as digits as its factorization.

41801381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 41801381 is about 6465.3987502706. The cubic root of 41801381 is about 347.0538580456.

The spelling of 41801381 in words is "forty-one million, eight hundred one thousand, three hundred eighty-one".