81160083 has 8 divisors (see below), whose sum is σ = 120237200. Its totient is φ = 54106704.

The previous prime is 81160063. The next prime is 81160087. The reversal of 81160083 is 38006118.

It is not a de Polignac number, because 81160083 - 2⁶ = 81160019 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: 3005929 = 81160083 / (8 + 1 + 1 + 6 + 0 + 0 + 8 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (81160087) 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, 1502938 + ... + 1502991.

It is an arithmetic number, because the mean of its divisors is an integer number (15029650).

Almost surely, 2^81160083 is an apocalyptic number.

81160083 is a deficient number, since it is larger than the sum of its proper divisors (39077117).

81160083 is a wasteful number, since it uses less digits than its factorization.

81160083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005938 (or 3005932 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 81160083 is about 9008.8891102067. The cubic root of 81160083 is about 432.9597201124.

The spelling of 81160083 in words is "eighty-one million, one hundred sixty thousand, eighty-three".