316825009 has 4 divisors (see below), whose sum is σ = 317944816. Its totient is φ = 315705204.

The previous prime is 316825007. The next prime is 316825021. The reversal of 316825009 is 900528613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900528613 = 21499 ⋅41887.

It is a cyclic number.

It is not a de Polignac number, because 316825009 - 2¹ = 316825007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316825007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559479 + ... + 560044.

It is an arithmetic number, because the mean of its divisors is an integer number (79486204).

Almost surely, 2^316825009 is an apocalyptic number.

It is an amenable number.

316825009 is a deficient number, since it is larger than the sum of its proper divisors (1119807).

316825009 is a wasteful number, since it uses less digits than its factorization.

316825009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119806.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 316825009 is about 17799.5788995133. The cubic root of 316825009 is about 681.7207063232.

The spelling of 316825009 in words is "three hundred sixteen million, eight hundred twenty-five thousand, nine".