81107114 has 16 divisors (see below), whose sum is σ = 132999840. Its totient is φ = 36789360.

The previous prime is 81107111. The next prime is 81107179. The reversal of 81107114 is 41170118.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 81107114.

It is not an unprimeable number, because it can be changed into a prime (81107111) by changing a digit.

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, 7577 + ... + 14819.

It is an arithmetic number, because the mean of its divisors is an integer number (8312490).

Almost surely, 2^81107114 is an apocalyptic number.

81107114 is a deficient number, since it is larger than the sum of its proper divisors (51892726).

81107114 is a wasteful number, since it uses less digits than its factorization.

81107114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7765.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 81107114 is about 9005.9488117577. The cubic root of 81107114 is about 432.8655094548.

The spelling of 81107114 in words is "eighty-one million, one hundred seven thousand, one hundred fourteen".