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BaseRepresentation
bin11100100110011001
312221200201
4130212121
512222040
62302201
7665350
oct344631
9187621
10117145
1180016
1257961
1341422
1430997
1524a9a
hex1c999

117145 has 8 divisors (see below), whose sum is σ = 160704. Its totient is φ = 80304.

The previous prime is 117133. The next prime is 117163. The reversal of 117145 is 541711.

Adding to 117145 its reverse (541711), we get a palindrome (658856).

It can be divided in two parts, 117 and 145, that added together give a palindrome (262).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117145 - 27 = 117017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639 + ... + 1708.

It is an arithmetic number, because the mean of its divisors is an integer number (20088).

2117145 is an apocalyptic number.

It is an amenable number.

117145 is a deficient number, since it is larger than the sum of its proper divisors (43559).

117145 is an equidigital number, since it uses as much as digits as its factorization.

117145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359.

The product of its digits is 140, while the sum is 19.

The square root of 117145 is about 342.2645175884. The cubic root of 117145 is about 48.9299289993.

The spelling of 117145 in words is "one hundred seventeen thousand, one hundred forty-five".

Divisors: 1 5 7 35 3347 16735 23429 117145