71841361 has 2 divisors, whose sum is σ = 71841362. Its totient is φ = 71841360.

The previous prime is 71841359. The next prime is 71841373. The reversal of 71841361 is 16314817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71301136 + 540225 = 8444^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 71841361 - 2¹ = 71841359 is a prime.

It is a super-2 number, since 2×71841361² = 10322362300664642, which contains 22 as substring.

Together with 71841359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71841391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35920680 + 35920681.

It is an arithmetic number, because the mean of its divisors is an integer number (35920681).

Almost surely, 2^71841361 is an apocalyptic number.

It is an amenable number.

71841361 is a deficient number, since it is larger than the sum of its proper divisors (1).

71841361 is an equidigital number, since it uses as much as digits as its factorization.

71841361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 71841361 is about 8475.9283267380. The cubic root of 71841361 is about 415.7110006595.

The spelling of 71841361 in words is "seventy-one million, eight hundred forty-one thousand, three hundred sixty-one".