41931161 has 2 divisors, whose sum is σ = 41931162. Its totient is φ = 41931160.

The previous prime is 41931143. The next prime is 41931199. The reversal of 41931161 is 16113914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40081561 + 1849600 = 6331^2 + 1360^2 .

It is a cyclic number.

It is not a de Polignac number, because 41931161 - 2¹⁰ = 41930137 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 41931161.

It is not a weakly prime, because it can be changed into another prime (41991161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20965580 + 20965581.

It is an arithmetic number, because the mean of its divisors is an integer number (20965581).

Almost surely, 2^41931161 is an apocalyptic number.

It is an amenable number.

41931161 is a deficient number, since it is larger than the sum of its proper divisors (1).

41931161 is an equidigital number, since it uses as much as digits as its factorization.

41931161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 26.

The square root of 41931161 is about 6475.4274762366. The cubic root of 41931161 is about 347.4126509575.

The spelling of 41931161 in words is "forty-one million, nine hundred thirty-one thousand, one hundred sixty-one".