263225135 has 4 divisors (see below), whose sum is σ = 315870168. Its totient is φ = 210580104.

The previous prime is 263225129. The next prime is 263225143. The reversal of 263225135 is 531522362.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263225135 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263225098 and 263225107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26322509 + ... + 26322518.

It is an arithmetic number, because the mean of its divisors is an integer number (78967542).

Almost surely, 2^263225135 is an apocalyptic number.

263225135 is a deficient number, since it is larger than the sum of its proper divisors (52645033).

263225135 is an equidigital number, since it uses as much as digits as its factorization.

263225135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52645032.

The product of its digits is 10800, while the sum is 29.

The square root of 263225135 is about 16224.2144648054. The cubic root of 263225135 is about 640.8786231468.

Adding to 263225135 its reverse (531522362), we get a palindrome (794747497).

The spelling of 263225135 in words is "two hundred sixty-three million, two hundred twenty-five thousand, one hundred thirty-five".