961137559 has 2 divisors, whose sum is σ = 961137560. Its totient is φ = 961137558.

The previous prime is 961137511. The next prime is 961137571. The reversal of 961137559 is 955731169.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 961137559 - 2⁷ = 961137431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961137509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480568779 + 480568780.

It is an arithmetic number, because the mean of its divisors is an integer number (480568780).

Almost surely, 2^961137559 is an apocalyptic number.

961137559 is a deficient number, since it is larger than the sum of its proper divisors (1).

961137559 is an equidigital number, since it uses as much as digits as its factorization.

961137559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 255150, while the sum is 46.

The square root of 961137559 is about 31002.2186141573. The cubic root of 961137559 is about 986.8743233923.

The spelling of 961137559 in words is "nine hundred sixty-one million, one hundred thirty-seven thousand, five hundred fifty-nine".