81414116 has 12 divisors (see below), whose sum is σ = 162828288. Its totient is φ = 34891752.

The previous prime is 81414103. The next prime is 81414121. The reversal of 81414116 is 61141418.

81414116 is an admirable number.

It is a super-2 number, since 2×81414116² = 13256516568122912, which contains 22 as substring.

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, 1453796 + ... + 1453851.

It is an arithmetic number, because the mean of its divisors is an integer number (13569024).

Almost surely, 2^81414116 is an apocalyptic number.

It is an amenable number.

81414116 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81414116 is a wasteful number, since it uses less digits than its factorization.

81414116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2907658 (or 2907656 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 81414116 is about 9022.9771140129. The cubic root of 81414116 is about 433.4109743853.

The spelling of 81414116 in words is "eighty-one million, four hundred fourteen thousand, one hundred sixteen".