948953561 has 2 divisors, whose sum is σ = 948953562. Its totient is φ = 948953560.

The previous prime is 948953557. The next prime is 948953567. The reversal of 948953561 is 165359849.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 945870025 + 3083536 = 30755^2 + 1756^2 .

It is a cyclic number.

It is not a de Polignac number, because 948953561 - 2² = 948953557 is a prime.

It is not a weakly prime, because it can be changed into another prime (948953567) 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, 474476780 + 474476781.

It is an arithmetic number, because the mean of its divisors is an integer number (474476781).

Almost surely, 2^948953561 is an apocalyptic number.

It is an amenable number.

948953561 is a deficient number, since it is larger than the sum of its proper divisors (1).

948953561 is an equidigital number, since it uses as much as digits as its factorization.

948953561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 50.

The square root of 948953561 is about 30805.0898554119. The cubic root of 948953561 is about 982.6864927515.

The spelling of 948953561 in words is "nine hundred forty-eight million, nine hundred fifty-three thousand, five hundred sixty-one".