81414014 has 16 divisors (see below), whose sum is σ = 134406000. Its totient is φ = 36677760.

The previous prime is 81414013. The next prime is 81414059. The reversal of 81414014 is 41041418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81414013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13889 + ... + 18860.

It is an arithmetic number, because the mean of its divisors is an integer number (8400375).

Almost surely, 2^81414014 is an apocalyptic number.

81414014 is a deficient number, since it is larger than the sum of its proper divisors (52991986).

81414014 is a wasteful number, since it uses less digits than its factorization.

81414014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32875.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 81414014 is about 9022.9714617747. The cubic root of 81414014 is about 433.4107933850.

The spelling of 81414014 in words is "eighty-one million, four hundred fourteen thousand, fourteen".