81094541 has 8 divisors (see below), whose sum is σ = 88547904. Its totient is φ = 73654720.

The previous prime is 81094537. The next prime is 81094553. The reversal of 81094541 is 14549018.

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

It is a cyclic number.

It is not a de Polignac number, because 81094541 - 2² = 81094537 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 81094498 and 81094507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81094501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12341 + ... + 17733.

It is an arithmetic number, because the mean of its divisors is an integer number (11068488).

Almost surely, 2^81094541 is an apocalyptic number.

It is an amenable number.

81094541 is a deficient number, since it is larger than the sum of its proper divisors (7453363).

81094541 is a wasteful number, since it uses less digits than its factorization.

81094541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 81094541 is about 9005.2507460925. The cubic root of 81094541 is about 432.8431410951.

The spelling of 81094541 in words is "eighty-one million, ninety-four thousand, five hundred forty-one".