266610131 has 2 divisors, whose sum is σ = 266610132. Its totient is φ = 266610130.

The previous prime is 266610107. The next prime is 266610139. The reversal of 266610131 is 131016662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 266610131 - 2⁶ = 266610067 is a prime.

It is a super-2 number, since 2×266610131² = 142161923903674322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 266610131.

It is not a weakly prime, because it can be changed into another prime (266610139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133305065 + 133305066.

It is an arithmetic number, because the mean of its divisors is an integer number (133305066).

Almost surely, 2^266610131 is an apocalyptic number.

266610131 is a deficient number, since it is larger than the sum of its proper divisors (1).

266610131 is an equidigital number, since it uses as much as digits as its factorization.

266610131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 266610131 is about 16328.2004826006. The cubic root of 266610131 is about 643.6140993671.

Adding to 266610131 its reverse (131016662), we get a palindrome (397626793).

The spelling of 266610131 in words is "two hundred sixty-six million, six hundred ten thousand, one hundred thirty-one".