81290483 has 2 divisors, whose sum is σ = 81290484. Its totient is φ = 81290482.

The previous prime is 81290477. The next prime is 81290507. The reversal of 81290483 is 38409218.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 81290483 - 2⁴ = 81290467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (81290453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40645241 + 40645242.

It is an arithmetic number, because the mean of its divisors is an integer number (40645242).

Almost surely, 2^81290483 is an apocalyptic number.

81290483 is a deficient number, since it is larger than the sum of its proper divisors (1).

81290483 is an equidigital number, since it uses as much as digits as its factorization.

81290483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 81290483 is about 9016.1235018161. The cubic root of 81290483 is about 433.1914749988.

The spelling of 81290483 in words is "eighty-one million, two hundred ninety thousand, four hundred eighty-three".