81104383 has 2 divisors, whose sum is σ = 81104384. Its totient is φ = 81104382.

The previous prime is 81104377. The next prime is 81104389. The reversal of 81104383 is 38340118.

It is a balanced prime because it is at equal distance from previous prime (81104377) and next prime (81104389).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-81104383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81104389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40552191 + 40552192.

It is an arithmetic number, because the mean of its divisors is an integer number (40552192).

Almost surely, 2^81104383 is an apocalyptic number.

81104383 is a deficient number, since it is larger than the sum of its proper divisors (1).

81104383 is an equidigital number, since it uses as much as digits as its factorization.

81104383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 81104383 is about 9005.7971884781. The cubic root of 81104383 is about 432.8606509867.

The spelling of 81104383 in words is "eighty-one million, one hundred four thousand, three hundred eighty-three".