81041703 has 8 divisors (see below), whose sum is σ = 114411888. Its totient is φ = 50849664.

The previous prime is 81041671. The next prime is 81041711. The reversal of 81041703 is 30714018.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 81041703 - 2⁵ = 81041671 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81041773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 794476 + ... + 794577.

It is an arithmetic number, because the mean of its divisors is an integer number (14301486).

Almost surely, 2^81041703 is an apocalyptic number.

81041703 is a deficient number, since it is larger than the sum of its proper divisors (33370185).

81041703 is a wasteful number, since it uses less digits than its factorization.

81041703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589073.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 81041703 is about 9002.3165352036. The cubic root of 81041703 is about 432.7491128387.

The spelling of 81041703 in words is "eighty-one million, forty-one thousand, seven hundred three".