80881147 has 2 divisors, whose sum is σ = 80881148. Its totient is φ = 80881146.

The previous prime is 80881111. The next prime is 80881159. The reversal of 80881147 is 74118808.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80881147 is a prime.

It is not a weakly prime, because it can be changed into another prime (80881247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40440573 + 40440574.

It is an arithmetic number, because the mean of its divisors is an integer number (40440574).

Almost surely, 2^80881147 is an apocalyptic number.

80881147 is a deficient number, since it is larger than the sum of its proper divisors (1).

80881147 is an equidigital number, since it uses as much as digits as its factorization.

80881147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 37.

The square root of 80881147 is about 8993.3946316171. The cubic root of 80881147 is about 432.4631431944.

The spelling of 80881147 in words is "eighty million, eight hundred eighty-one thousand, one hundred forty-seven".