81482933 has 12 divisors (see below), whose sum is σ = 95108832. Its totient is φ = 69604920.

The previous prime is 81482903. The next prime is 81482939. The reversal of 81482933 is 33928418.

It is not a de Polignac number, because 81482933 - 2¹⁶ = 81417397 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81482939) 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, 12566 + ... + 17912.

It is an arithmetic number, because the mean of its divisors is an integer number (7925736).

Almost surely, 2^81482933 is an apocalyptic number.

It is an amenable number.

81482933 is a deficient number, since it is larger than the sum of its proper divisors (13625899).

81482933 is a wasteful number, since it uses less digits than its factorization.

81482933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5672 (or 5665 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 81482933 is about 9026.7897394367. The cubic root of 81482933 is about 433.5330565857.

The spelling of 81482933 in words is "eighty-one million, four hundred eighty-two thousand, nine hundred thirty-three".