266245141 has 2 divisors, whose sum is σ = 266245142. Its totient is φ = 266245140.

The previous prime is 266245123. The next prime is 266245181. The reversal of 266245141 is 141542662.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157126225 + 109118916 = 12535^2 + 10446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-266245141 is a prime.

It is a super-2 number, since 2×266245141² = 141772950212219762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (266245181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133122570 + 133122571.

It is an arithmetic number, because the mean of its divisors is an integer number (133122571).

Almost surely, 2^266245141 is an apocalyptic number.

It is an amenable number.

266245141 is a deficient number, since it is larger than the sum of its proper divisors (1).

266245141 is an equidigital number, since it uses as much as digits as its factorization.

266245141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 266245141 is about 16317.0199791506. The cubic root of 266245141 is about 643.3202620830.

The spelling of 266245141 in words is "two hundred sixty-six million, two hundred forty-five thousand, one hundred forty-one".