266622131 has 2 divisors, whose sum is σ = 266622132. Its totient is φ = 266622130.

The previous prime is 266622091. The next prime is 266622137. The reversal of 266622131 is 131226662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266622131 - 2¹⁰ = 266621107 is a prime.

It is a super-2 number, since 2×266622131² = 142174721477962322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 266622094 and 266622103.

It is not a weakly prime, because it can be changed into another prime (266622137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133311065 + 133311066.

It is an arithmetic number, because the mean of its divisors is an integer number (133311066).

Almost surely, 2^266622131 is an apocalyptic number.

266622131 is a deficient number, since it is larger than the sum of its proper divisors (1).

266622131 is an equidigital number, since it uses as much as digits as its factorization.

266622131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 29.

The square root of 266622131 is about 16328.5679408820. The cubic root of 266622131 is about 643.6237554810.

Adding to 266622131 its reverse (131226662), we get a palindrome (397848793).

The spelling of 266622131 in words is "two hundred sixty-six million, six hundred twenty-two thousand, one hundred thirty-one".