316742189 has 4 divisors (see below), whose sum is σ = 320301180. Its totient is φ = 313183200.

The previous prime is 316742183. The next prime is 316742197. The reversal of 316742189 is 981247613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188101225 + 128640964 = 13715^2 + 11342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-316742189 is a prime.

It is a super-2 number, since 2×316742189² = 200651228585023442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316742183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779362 + ... + 1779539.

It is an arithmetic number, because the mean of its divisors is an integer number (80075295).

Almost surely, 2^316742189 is an apocalyptic number.

It is an amenable number.

316742189 is a deficient number, since it is larger than the sum of its proper divisors (3558991).

316742189 is an equidigital number, since it uses as much as digits as its factorization.

316742189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3558990.

The product of its digits is 72576, while the sum is 41.

The square root of 316742189 is about 17797.2522879235. The cubic root of 316742189 is about 681.6612991556.

The spelling of 316742189 in words is "three hundred sixteen million, seven hundred forty-two thousand, one hundred eighty-nine".