81114183 has 8 divisors (see below), whose sum is σ = 120169200. Its totient is φ = 54076104.

The previous prime is 81114167. The next prime is 81114199. The reversal of 81114183 is 38141118.

It is an interprime number because it is at equal distance from previous prime (81114167) and next prime (81114199).

It is not a de Polignac number, because 81114183 - 2⁴ = 81114167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 3004229 = 81114183 / (8 + 1 + 1 + 1 + 4 + 1 + 8 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81114133) 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, 1502088 + ... + 1502141.

It is an arithmetic number, because the mean of its divisors is an integer number (15021150).

Almost surely, 2^81114183 is an apocalyptic number.

81114183 is a deficient number, since it is larger than the sum of its proper divisors (39055017).

81114183 is a wasteful number, since it uses less digits than its factorization.

81114183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3004238 (or 3004232 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

The square root of 81114183 is about 9006.3412660192. The cubic root of 81114183 is about 432.8780847487.

The spelling of 81114183 in words is "eighty-one million, one hundred fourteen thousand, one hundred eighty-three".