81114055 has 16 divisors (see below), whose sum is σ = 112433184. Its totient is φ = 55521280.

The previous prime is 81114049. The next prime is 81114091. The reversal of 81114055 is 55041118.

It is a happy number.

It is not a de Polignac number, because 81114055 - 2⁷ = 81113927 is a prime.

It is a super-3 number, since 3×81114055³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42442 + ... + 44311.

It is an arithmetic number, because the mean of its divisors is an integer number (7027074).

Almost surely, 2^81114055 is an apocalyptic number.

81114055 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

81114055 is a deficient number, since it is larger than the sum of its proper divisors (31319129).

81114055 is a wasteful number, since it uses less digits than its factorization.

81114055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86786.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 81114055 is about 9006.3341599121. The cubic root of 81114055 is about 432.8778570515.

It can be divided in two parts, 8111 and 4055, that multiplied together give a triangular number (32890105 = T₈₁₁₀).

The spelling of 81114055 in words is "eighty-one million, one hundred fourteen thousand, fifty-five".