261310759 has 2 divisors, whose sum is σ = 261310760. Its totient is φ = 261310758.

The previous prime is 261310747. The next prime is 261310769. The reversal of 261310759 is 957013162.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 261310759 - 2⁷ = 261310631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261310739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130655379 + 130655380.

It is an arithmetic number, because the mean of its divisors is an integer number (130655380).

Almost surely, 2^261310759 is an apocalyptic number.

261310759 is a deficient number, since it is larger than the sum of its proper divisors (1).

261310759 is an equidigital number, since it uses as much as digits as its factorization.

261310759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 261310759 is about 16165.1093098686. The cubic root of 261310759 is about 639.3211870130.

The spelling of 261310759 in words is "two hundred sixty-one million, three hundred ten thousand, seven hundred fifty-nine".