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BaseRepresentation
bin10111101100111001
311221011121
4113230321
511101311
62025241
7553015
oct275471
9157147
1097081
1166a36
1248221
133525a
1427545
151db71
hex17b39

97081 has 2 divisors, whose sum is σ = 97082. Its totient is φ = 97080.

The previous prime is 97073. The next prime is 97103. The reversal of 97081 is 18079.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95481 + 1600 = 309^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 97081 - 23 = 97073 is a prime.

It is a super-2 number, since 2×970812 = 18849441122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48540 + 48541.

It is an arithmetic number, because the mean of its divisors is an integer number (48541).

297081 is an apocalyptic number.

It is an amenable number.

97081 is a deficient number, since it is larger than the sum of its proper divisors (1).

97081 is an equidigital number, since it uses as much as digits as its factorization.

97081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 97081 is about 311.5782405753. The cubic root of 97081 is about 45.9597947374.

The spelling of 97081 in words is "ninety-seven thousand, eighty-one".