260135311 has 2 divisors, whose sum is σ = 260135312. Its totient is φ = 260135310.

The previous prime is 260135299. The next prime is 260135321. The reversal of 260135311 is 113531062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260135311 - 2²¹ = 258038159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260135321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130067655 + 130067656.

It is an arithmetic number, because the mean of its divisors is an integer number (130067656).

Almost surely, 2^260135311 is an apocalyptic number.

260135311 is a deficient number, since it is larger than the sum of its proper divisors (1).

260135311 is an equidigital number, since it uses as much as digits as its factorization.

260135311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 260135311 is about 16128.7107668282. The cubic root of 260135311 is about 638.3611315866.

Adding to 260135311 its reverse (113531062), we get a palindrome (373666373).

The spelling of 260135311 in words is "two hundred sixty million, one hundred thirty-five thousand, three hundred eleven".