263128 has 16 divisors (see below), whose sum is σ = 509760. Its totient is φ = 127200.

The previous prime is 263119. The next prime is 263129. The reversal of 263128 is 821362.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 263099 and 263108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263129) 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 in 3 ways as a sum of consecutive naturals, for example, 283 + ... + 778.

It is an arithmetic number, because the mean of its divisors is an integer number (31860).

2²⁶³¹²⁸ is an apocalyptic number.

It is an amenable number.

263128 is a deficient number, since it is larger than the sum of its proper divisors (246632).

263128 is a wasteful number, since it uses less digits than its factorization.

263128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098 (or 1094 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 263128 is about 512.9600374298. The cubic root of 263128 is about 64.0799781380.

The spelling of 263128 in words is "two hundred sixty-three thousand, one hundred twenty-eight".