81083283 has 4 divisors (see below), whose sum is σ = 108111048. Its totient is φ = 54055520.

The previous prime is 81083273. The next prime is 81083297. The reversal of 81083283 is 38238018.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 81083283 - 2¹⁴ = 81066899 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (81083273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13513878 + ... + 13513883.

It is an arithmetic number, because the mean of its divisors is an integer number (27027762).

Almost surely, 2^81083283 is an apocalyptic number.

81083283 is a deficient number, since it is larger than the sum of its proper divisors (27027765).

81083283 is a wasteful number, since it uses less digits than its factorization.

81083283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27027764.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 81083283 is about 9004.6256446340. The cubic root of 81083283 is about 432.8231102622.

The spelling of 81083283 in words is "eighty-one million, eighty-three thousand, two hundred eighty-three".