266141653 has 2 divisors, whose sum is σ = 266141654. Its totient is φ = 266141652.

The previous prime is 266141609. The next prime is 266141669. The reversal of 266141653 is 356141662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 244547044 + 21594609 = 15638^2 + 4647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266141653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266141453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133070826 + 133070827.

It is an arithmetic number, because the mean of its divisors is an integer number (133070827).

Almost surely, 2^266141653 is an apocalyptic number.

It is an amenable number.

266141653 is a deficient number, since it is larger than the sum of its proper divisors (1).

266141653 is an equidigital number, since it uses as much as digits as its factorization.

266141653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 266141653 is about 16313.8485036487. The cubic root of 266141653 is about 643.2368996164.

Subtracting 266141653 from its reverse (356141662), we obtain a palindrome (90000009).

The spelling of 266141653 in words is "two hundred sixty-six million, one hundred forty-one thousand, six hundred fifty-three".