995069561 has 2 divisors, whose sum is σ = 995069562. Its totient is φ = 995069560.

The previous prime is 995069533. The next prime is 995069563. The reversal of 995069561 is 165960599.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 939790336 + 55279225 = 30656^2 + 7435^2 .

It is a cyclic number.

It is not a de Polignac number, because 995069561 - 2¹⁸ = 994807417 is a prime.

Together with 995069563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (995069563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497534780 + 497534781.

It is an arithmetic number, because the mean of its divisors is an integer number (497534781).

Almost surely, 2^995069561 is an apocalyptic number.

It is an amenable number.

995069561 is a deficient number, since it is larger than the sum of its proper divisors (1).

995069561 is an equidigital number, since it uses as much as digits as its factorization.

995069561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 656100, while the sum is 50.

The square root of 995069561 is about 31544.7231878804. The cubic root of 995069561 is about 998.3538118850.

The spelling of 995069561 in words is "nine hundred ninety-five million, sixty-nine thousand, five hundred sixty-one".