995213209 has 3 divisors (see below), whose sum is σ = 995244757. Its totient is φ = 995181662.

The previous prime is 995213189. The next prime is 995213237. The reversal of 995213209 is 902312599.

The square root of 995213209 is 31547.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 995213209 - 2¹³ = 995205017 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (995213249) 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 in 2 ways as a sum of consecutive naturals, for example, 15774 + ... + 47320.

Almost surely, 2^995213209 is an apocalyptic number.

995213209 is the 31547-th square number.

995213209 is the 15774-th centered octagonal number.

It is an amenable number.

995213209 is a deficient number, since it is larger than the sum of its proper divisors (31548).

995213209 is an frugal number, since it uses more digits than its factorization.

995213209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63094 (or 31547 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The cubic root of 995213209 is about 998.4018502781.

The spelling of 995213209 in words is "nine hundred ninety-five million, two hundred thirteen thousand, two hundred nine".