81414068 has 12 divisors (see below), whose sum is σ = 142554720. Its totient is φ = 40684152.

The previous prime is 81414059. The next prime is 81414079. The reversal of 81414068 is 86041418.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4193 + ... + 13431.

It is an arithmetic number, because the mean of its divisors is an integer number (11879560).

Almost surely, 2^81414068 is an apocalyptic number.

It is an amenable number.

81414068 is a deficient number, since it is larger than the sum of its proper divisors (61140652).

81414068 is a wasteful number, since it uses less digits than its factorization.

81414068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446 (or 11444 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 81414068 is about 9022.9744541365. The cubic root of 81414068 is about 433.4108892087.

The spelling of 81414068 in words is "eighty-one million, four hundred fourteen thousand, sixty-eight".