81482136 has 32 divisors (see below), whose sum is σ = 210278400. Its totient is φ = 26284320.

The previous prime is 81482111. The next prime is 81482143. The reversal of 81482136 is 63128418.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 81482097 and 81482106.

It is a congruent number.

It is an unprimeable number.

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, 54016 + ... + 55503.

It is an arithmetic number, because the mean of its divisors is an integer number (6571200).

Almost surely, 2^81482136 is an apocalyptic number.

It is an amenable number.

81482136 is an abundant number, since it is smaller than the sum of its proper divisors (128796264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81482136 is a wasteful number, since it uses less digits than its factorization.

81482136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109559 (or 109555 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 81482136 is about 9026.7455929587. The cubic root of 81482136 is about 433.5316430914.

It can be divided in two parts, 81482 and 136, that added together give a palindrome (81618).

The spelling of 81482136 in words is "eighty-one million, four hundred eighty-two thousand, one hundred thirty-six".