81324062 has 16 divisors (see below), whose sum is σ = 127427040. Its totient is φ = 38875872.

The previous prime is 81324037. The next prime is 81324077. The reversal of 81324062 is 26042318.

It is a super-2 number, since 2×81324062² = 13227206120359688, which contains 22 as substring.

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, 833 + ... + 12780.

It is an arithmetic number, because the mean of its divisors is an integer number (7964190).

Almost surely, 2^81324062 is an apocalyptic number.

81324062 is a deficient number, since it is larger than the sum of its proper divisors (46102978).

81324062 is a wasteful number, since it uses less digits than its factorization.

81324062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13747.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 81324062 is about 9017.9854734857. The cubic root of 81324062 is about 433.2511135263.

The spelling of 81324062 in words is "eighty-one million, three hundred twenty-four thousand, sixty-two".