266130331 has 4 divisors (see below), whose sum is σ = 271151712. Its totient is φ = 261108952.

The previous prime is 266130313. The next prime is 266130341. The reversal of 266130331 is 133031662.

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

It is not a de Polignac number, because 266130331 - 2⁹ = 266129819 is a prime.

It is a super-2 number, since 2×266130331² = 141650706156339122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 266130296 and 266130305.

It is not an unprimeable number, because it can be changed into a prime (266130341) 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, 2510611 + ... + 2510716.

It is an arithmetic number, because the mean of its divisors is an integer number (67787928).

Almost surely, 2^266130331 is an apocalyptic number.

266130331 is a deficient number, since it is larger than the sum of its proper divisors (5021381).

266130331 is an equidigital number, since it uses as much as digits as its factorization.

266130331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021380.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 266130331 is about 16313.5014941612. The cubic root of 266130331 is about 643.2277781186.

Adding to 266130331 its reverse (133031662), we get a palindrome (399161993).

The spelling of 266130331 in words is "two hundred sixty-six million, one hundred thirty thousand, three hundred thirty-one".