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BaseRepresentation
bin11111111100000001
320122110002
4133330001
513141232
62445345
71053251
oct377401
9218402
10130817
118a315
1263855
134770b
1435961
1528b62
hex1ff01

130817 has 2 divisors, whose sum is σ = 130818. Its totient is φ = 130816.

The previous prime is 130811. The next prime is 130829. The reversal of 130817 is 718031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128881 + 1936 = 359^2 + 44^2 .

It is a cyclic number.

It is not a de Polignac number, because 130817 - 210 = 129793 is a prime.

It is a super-2 number, since 2×1308172 = 34226174978, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 130817 parts by 511 straight cuts.

It is not a weakly prime, because it can be changed into another prime (130811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65408 + 65409.

It is an arithmetic number, because the mean of its divisors is an integer number (65409).

2130817 is an apocalyptic number.

It is an amenable number.

130817 is a deficient number, since it is larger than the sum of its proper divisors (1).

130817 is an equidigital number, since it uses as much as digits as its factorization.

130817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 130817 is about 361.6863281906. The cubic root of 130817 is about 50.7638706050.

Adding to 130817 its reverse (718031), we get a palindrome (848848).

The spelling of 130817 in words is "one hundred thirty thousand, eight hundred seventeen".