999995141 has 2 divisors, whose sum is σ = 999995142. Its totient is φ = 999995140.

The previous prime is 999995111. The next prime is 999995239. The reversal of 999995141 is 141599999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 564062500 + 435932641 = 23750^2 + 20879^2 .

It is a cyclic number.

It is not a de Polignac number, because 999995141 - 2¹⁸ = 999732997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999995111) 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, 499997570 + 499997571.

It is an arithmetic number, because the mean of its divisors is an integer number (499997571).

Almost surely, 2^999995141 is an apocalyptic number.

It is an amenable number.

999995141 is a deficient number, since it is larger than the sum of its proper divisors (1).

999995141 is an equidigital number, since it uses as much as digits as its factorization.

999995141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 56.

The square root of 999995141 is about 31622.6997740547. The cubic root of 999995141 is about 999.9983803307.

The spelling of 999995141 in words is "nine hundred ninety-nine million, nine hundred ninety-five thousand, one hundred forty-one".