263195 has 4 divisors (see below), whose sum is σ = 315840. Its totient is φ = 210552.

The previous prime is 263191. The next prime is 263201. The reversal of 263195 is 591362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 263195 - 2² = 263191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26315 + ... + 26324.

It is an arithmetic number, because the mean of its divisors is an integer number (78960).

2²⁶³¹⁹⁵ is an apocalyptic number.

263195 is a deficient number, since it is larger than the sum of its proper divisors (52645).

263195 is an equidigital number, since it uses as much as digits as its factorization.

263195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52644.

The product of its digits is 1620, while the sum is 26.

The square root of 263195 is about 513.0253405047. The cubic root of 263195 is about 64.0854165484.

Subtracting from 263195 its sum of digits (26), we obtain a square (263169 = 513²).

The spelling of 263195 in words is "two hundred sixty-three thousand, one hundred ninety-five".