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115249 is a prime number
BaseRepresentation
bin11100001000110001
312212002111
4130020301
512141444
62245321
7660001
oct341061
9185074
10115249
1179652
1256841
13405c4
1430001
1524234
hex1c231

115249 has 2 divisors, whose sum is σ = 115250. Its totient is φ = 115248.

The previous prime is 115237. The next prime is 115259. The reversal of 115249 is 942511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87025 + 28224 = 295^2 + 168^2 .

It is a cyclic number.

It is not a de Polignac number, because 115249 - 213 = 107057 is a prime.

It is not a weakly prime, because it can be changed into another prime (115259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57624 + 57625.

It is an arithmetic number, because the mean of its divisors is an integer number (57625).

115249 is a Friedman number, since it can be written as 1+(9+5)^4*(2+1), using all its digits and the basic arithmetic operations.

2115249 is an apocalyptic number.

It is an amenable number.

115249 is a deficient number, since it is larger than the sum of its proper divisors (1).

115249 is an equidigital number, since it uses as much as digits as its factorization.

115249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 115249 is about 339.4834311126. The cubic root of 115249 is about 48.6645137806.

The spelling of 115249 in words is "one hundred fifteen thousand, two hundred forty-nine".