Search a number
143195 = 5132203
BaseRepresentation
bin100010111101011011
321021102112
4202331123
514040240
63022535
71134323
oct427533
9237375
10143195
1198648
126aa4b
1350240
143a283
152c665
hex22f5b

143195 has 8 divisors (see below), whose sum is σ = 185136. Its totient is φ = 105696.

The previous prime is 143177. The next prime is 143197. The reversal of 143195 is 591341.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 143195 - 28 = 142939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143195.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143195.

It is not an unprimeable number, because it can be changed into a prime (143197) 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 in 7 ways as a sum of consecutive naturals, for example, 1037 + ... + 1166.

It is an arithmetic number, because the mean of its divisors is an integer number (23142).

2143195 is an apocalyptic number.

143195 is a deficient number, since it is larger than the sum of its proper divisors (41941).

143195 is a wasteful number, since it uses less digits than its factorization.

143195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221.

The product of its digits is 540, while the sum is 23.

The square root of 143195 is about 378.4111520555. The cubic root of 143195 is about 52.3169741647.

The spelling of 143195 in words is "one hundred forty-three thousand, one hundred ninety-five".

Divisors: 1 5 13 65 2203 11015 28639 143195