995221013 has 2 divisors, whose sum is σ = 995221014. Its totient is φ = 995221012.

The previous prime is 995221001. The next prime is 995221049. The reversal of 995221013 is 310122599.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 734301604 + 260919409 = 27098^2 + 16153^2 .

It is an emirp because it is prime and its reverse (310122599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 995221013 - 2⁶ = 995220949 is a prime.

It is a congruent number.

It is a weakly prime.

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, 497610506 + 497610507.

It is an arithmetic number, because the mean of its divisors is an integer number (497610507).

Almost surely, 2^995221013 is an apocalyptic number.

It is an amenable number.

995221013 is a deficient number, since it is larger than the sum of its proper divisors (1).

995221013 is an equidigital number, since it uses as much as digits as its factorization.

995221013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 995221013 is about 31547.1236882224. The cubic root of 995221013 is about 998.4044599392.

The spelling of 995221013 in words is "nine hundred ninety-five million, two hundred twenty-one thousand, thirteen".