131266331 has 4 divisors (see below), whose sum is σ = 150018672. Its totient is φ = 112513992.

The previous prime is 131266309. The next prime is 131266349. The reversal of 131266331 is 133662131.

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 131266331 - 2¹⁴ = 131249947 is a prime.

It is a super-2 number, since 2×131266331² = 34461699308403122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131266331.

It is not an unprimeable number, because it can be changed into a prime (131266301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9376160 + ... + 9376173.

It is an arithmetic number, because the mean of its divisors is an integer number (37504668).

Almost surely, 2^131266331 is an apocalyptic number.

131266331 is a deficient number, since it is larger than the sum of its proper divisors (18752341).

131266331 is an equidigital number, since it uses as much as digits as its factorization.

131266331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18752340.

The product of its digits is 1944, while the sum is 26.

The square root of 131266331 is about 11457.1519584930. The cubic root of 131266331 is about 508.2192553351.

The spelling of 131266331 in words is "one hundred thirty-one million, two hundred sixty-six thousand, three hundred thirty-one".