131255263 has 4 divisors (see below), whose sum is σ = 132416928. Its totient is φ = 130093600.

The previous prime is 131255251. The next prime is 131255279. The reversal of 131255263 is 362552131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362552131 = 3301 ⋅109831.

It is a cyclic number.

It is not a de Polignac number, because 131255263 - 2⁵ = 131255231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131255203) by changing a digit.

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, 580663 + ... + 580888.

It is an arithmetic number, because the mean of its divisors is an integer number (33104232).

Almost surely, 2^131255263 is an apocalyptic number.

131255263 is a deficient number, since it is larger than the sum of its proper divisors (1161665).

131255263 is a wasteful number, since it uses less digits than its factorization.

131255263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161664.

The product of its digits is 5400, while the sum is 28.

The square root of 131255263 is about 11456.6689312383. The cubic root of 131255263 is about 508.2049710710.

The spelling of 131255263 in words is "one hundred thirty-one million, two hundred fifty-five thousand, two hundred sixty-three".