131566263 has 16 divisors (see below), whose sum is σ = 182016000. Its totient is φ = 84443040.

The previous prime is 131566231. The next prime is 131566273. The reversal of 131566263 is 362665131.

It is not a de Polignac number, because 131566263 - 2⁵ = 131566231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131566223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14953 + ... + 22061.

It is an arithmetic number, because the mean of its divisors is an integer number (11376000).

Almost surely, 2^131566263 is an apocalyptic number.

131566263 is a deficient number, since it is larger than the sum of its proper divisors (50449737).

131566263 is a wasteful number, since it uses less digits than its factorization.

131566263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7342.

The product of its digits is 19440, while the sum is 33.

The square root of 131566263 is about 11470.2337814013. The cubic root of 131566263 is about 508.6060396343.

The spelling of 131566263 in words is "one hundred thirty-one million, five hundred sixty-six thousand, two hundred sixty-three".