81090483 has 4 divisors (see below), whose sum is σ = 108120648. Its totient is φ = 54060320.

The previous prime is 81090469. The next prime is 81090487. The reversal of 81090483 is 38409018.

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 81090483 - 2¹⁴ = 81074099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (81090487) 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, 13515078 + ... + 13515083.

It is an arithmetic number, because the mean of its divisors is an integer number (27030162).

Almost surely, 2^81090483 is an apocalyptic number.

81090483 is a deficient number, since it is larger than the sum of its proper divisors (27030165).

81090483 is a wasteful number, since it uses less digits than its factorization.

81090483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27030164.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 81090483 is about 9005.0254302806. The cubic root of 81090483 is about 432.8359210992.

The spelling of 81090483 in words is "eighty-one million, ninety thousand, four hundred eighty-three".