81803341 has 8 divisors (see below), whose sum is σ = 89853120. Its totient is φ = 74128032.

The previous prime is 81803333. The next prime is 81803347. The reversal of 81803341 is 14330818.

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 81803341 - 2³ = 81803333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81803347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93160 + ... + 94033.

It is an arithmetic number, because the mean of its divisors is an integer number (11231640).

Almost surely, 2^81803341 is an apocalyptic number.

It is an amenable number.

81803341 is a deficient number, since it is larger than the sum of its proper divisors (8049779).

81803341 is a wasteful number, since it uses less digits than its factorization.

81803341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187235.

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

The square root of 81803341 is about 9044.5199430373. The cubic root of 81803341 is about 434.1005610519.

The spelling of 81803341 in words is "eighty-one million, eight hundred three thousand, three hundred forty-one".