80917141 has 2 divisors, whose sum is σ = 80917142. Its totient is φ = 80917140.

The previous prime is 80917139. The next prime is 80917157. The reversal of 80917141 is 14171908.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56700900 + 24216241 = 7530^2 + 4921^2 .

It is a cyclic number.

It is not a de Polignac number, because 80917141 - 2¹ = 80917139 is a prime.

It is a super-2 number, since 2×80917141² = 13095167415227762, which contains 22 as substring.

Together with 80917139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80917241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40458570 + 40458571.

It is an arithmetic number, because the mean of its divisors is an integer number (40458571).

Almost surely, 2^80917141 is an apocalyptic number.

It is an amenable number.

80917141 is a deficient number, since it is larger than the sum of its proper divisors (1).

80917141 is an equidigital number, since it uses as much as digits as its factorization.

80917141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 80917141 is about 8995.3955443883. The cubic root of 80917141 is about 432.5272857478.

The spelling of 80917141 in words is "eighty million, nine hundred seventeen thousand, one hundred forty-one".