81094103 has 2 divisors, whose sum is σ = 81094104. Its totient is φ = 81094102.

The previous prime is 81094099. The next prime is 81094127. The reversal of 81094103 is 30149018.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81094103 - 2² = 81094099 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (81094133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40547051 + 40547052.

It is an arithmetic number, because the mean of its divisors is an integer number (40547052).

Almost surely, 2^81094103 is an apocalyptic number.

81094103 is a deficient number, since it is larger than the sum of its proper divisors (1).

81094103 is an equidigital number, since it uses as much as digits as its factorization.

81094103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 81094103 is about 9005.2264269145. The cubic root of 81094103 is about 432.8423618168.

The spelling of 81094103 in words is "eighty-one million, ninety-four thousand, one hundred three".