263875123 has 4 divisors (see below), whose sum is σ = 265125928. Its totient is φ = 262624320.

The previous prime is 263875111. The next prime is 263875141. The reversal of 263875123 is 321578362.

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 263875123 - 2⁵ = 263875091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263875153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625086 + ... + 625507.

It is an arithmetic number, because the mean of its divisors is an integer number (66281482).

Almost surely, 2^263875123 is an apocalyptic number.

263875123 is a deficient number, since it is larger than the sum of its proper divisors (1250805).

263875123 is a wasteful number, since it uses less digits than its factorization.

263875123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250804.

The product of its digits is 60480, while the sum is 37.

The square root of 263875123 is about 16244.2335307025. The cubic root of 263875123 is about 641.4057017475.

The spelling of 263875123 in words is "two hundred sixty-three million, eight hundred seventy-five thousand, one hundred twenty-three".