81150281083 has 2 divisors, whose sum is σ = 81150281084. Its totient is φ = 81150281082.

The previous prime is 81150281063. The next prime is 81150281089. The reversal of 81150281083 is 38018205118.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81150281083 - 2³³ = 72560346491 is a prime.

It is not a weakly prime, because it can be changed into another prime (81150281089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40575140541 + 40575140542.

It is an arithmetic number, because the mean of its divisors is an integer number (40575140542).

Almost surely, 2^81150281083 is an apocalyptic number.

81150281083 is a deficient number, since it is larger than the sum of its proper divisors (1).

81150281083 is an equidigital number, since it uses as much as digits as its factorization.

81150281083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 81150281083 in words is "eighty-one billion, one hundred fifty million, two hundred eighty-one thousand, eighty-three".