81941114 has 8 divisors (see below), whose sum is σ = 122952288. Its totient is φ = 40957020.

The previous prime is 81941107. The next prime is 81941131. The reversal of 81941114 is 41114918.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 4649 + ... + 13619.

It is an arithmetic number, because the mean of its divisors is an integer number (15369036).

Almost surely, 2^81941114 is an apocalyptic number.

81941114 is a deficient number, since it is larger than the sum of its proper divisors (41011174).

81941114 is a wasteful number, since it uses less digits than its factorization.

81941114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13540.

The product of its digits is 1152, while the sum is 29.

The square root of 81941114 is about 9052.1331187737. The cubic root of 81941114 is about 434.3441280890.

The spelling of 81941114 in words is "eighty-one million, nine hundred forty-one thousand, one hundred fourteen".