316772191 has 16 divisors (see below), whose sum is σ = 337296960. Its totient is φ = 296961280.

The previous prime is 316772189. The next prime is 316772201. The reversal of 316772191 is 191277613.

It is a cyclic number.

It is not a de Polignac number, because 316772191 - 2¹ = 316772189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 316772191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316772111) 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 in 15 ways as a sum of consecutive naturals, for example, 312201 + ... + 313213.

It is an arithmetic number, because the mean of its divisors is an integer number (21081060).

Almost surely, 2^316772191 is an apocalyptic number.

316772191 is a deficient number, since it is larger than the sum of its proper divisors (20524769).

316772191 is a wasteful number, since it uses less digits than its factorization.

316772191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346.

The product of its digits is 15876, while the sum is 37.

The square root of 316772191 is about 17798.0951508862. The cubic root of 316772191 is about 681.6828209245.

The spelling of 316772191 in words is "three hundred sixteen million, seven hundred seventy-two thousand, one hundred ninety-one".