961265671 has 2 divisors, whose sum is σ = 961265672. Its totient is φ = 961265670.

The previous prime is 961265531. The next prime is 961265687. The reversal of 961265671 is 176562169.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-961265671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (961265171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480632835 + 480632836.

It is an arithmetic number, because the mean of its divisors is an integer number (480632836).

Almost surely, 2^961265671 is an apocalyptic number.

961265671 is a deficient number, since it is larger than the sum of its proper divisors (1).

961265671 is an equidigital number, since it uses as much as digits as its factorization.

961265671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 961265671 is about 31004.2847200189. The cubic root of 961265671 is about 986.9181689463.

The spelling of 961265671 in words is "nine hundred sixty-one million, two hundred sixty-five thousand, six hundred seventy-one".