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115169 = 41532
BaseRepresentation
bin11100000111100001
312211222112
4130013201
512141134
62245105
7656525
oct340741
9184875
10115169
117958a
1256795
1340562
142dd85
15241ce
hex1c1e1

115169 has 6 divisors (see below), whose sum is σ = 120246. Its totient is φ = 110240.

The previous prime is 115163. The next prime is 115183. The reversal of 115169 is 961511.

It can be written as a sum of positive squares in 3 ways, for example, as 12769 + 102400 = 113^2 + 320^2 .

It is not a de Polignac number, because 115169 - 24 = 115153 is a prime.

It is a super-2 number, since 2×1151692 = 26527797122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2147 + ... + 2199.

It is an arithmetic number, because the mean of its divisors is an integer number (20041).

2115169 is an apocalyptic number.

It is an amenable number.

115169 is a deficient number, since it is larger than the sum of its proper divisors (5077).

115169 is an frugal number, since it uses more digits than its factorization.

115169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 94 counting only the distinct ones).

The product of its digits is 270, while the sum is 23.

The square root of 115169 is about 339.3655845839. The cubic root of 115169 is about 48.6532510299.

The spelling of 115169 in words is "one hundred fifteen thousand, one hundred sixty-nine".

Divisors: 1 41 53 2173 2809 115169