81832941 has 12 divisors (see below), whose sum is σ = 120207360. Its totient is φ = 53630280.

The previous prime is 81832939. The next prime is 81832957. The reversal of 81832941 is 14923818.

It is not a de Polignac number, because 81832941 - 2¹ = 81832939 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 81832896 and 81832905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81832931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76525 + ... + 77586.

It is an arithmetic number, because the mean of its divisors is an integer number (10017280).

Almost surely, 2^81832941 is an apocalyptic number.

It is an amenable number.

81832941 is a deficient number, since it is larger than the sum of its proper divisors (38374419).

81832941 is a wasteful number, since it uses less digits than its factorization.

81832941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154176 (or 154173 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 81832941 is about 9046.1561450154. The cubic root of 81832941 is about 434.1529135473.

The spelling of 81832941 in words is "eighty-one million, eight hundred thirty-two thousand, nine hundred forty-one".