964566121 has 2 divisors, whose sum is σ = 964566122. Its totient is φ = 964566120.

The previous prime is 964566089. The next prime is 964566149. The reversal of 964566121 is 121665469.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 933608025 + 30958096 = 30555^2 + 5564^2 .

It is a cyclic number.

It is not a de Polignac number, because 964566121 - 2⁵ = 964566089 is a prime.

It is not a weakly prime, because it can be changed into another prime (964566181) 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, 482283060 + 482283061.

It is an arithmetic number, because the mean of its divisors is an integer number (482283061).

Almost surely, 2^964566121 is an apocalyptic number.

It is an amenable number.

964566121 is a deficient number, since it is larger than the sum of its proper divisors (1).

964566121 is an equidigital number, since it uses as much as digits as its factorization.

964566121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The square root of 964566121 is about 31057.4648192669. The cubic root of 964566121 is about 988.0463874940.

The spelling of 964566121 in words is "nine hundred sixty-four million, five hundred sixty-six thousand, one hundred twenty-one".