316219049 has 4 divisors (see below), whose sum is σ = 316295364. Its totient is φ = 316142736.

The previous prime is 316219039. The next prime is 316219051. The reversal of 316219049 is 940912613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 940912613 = 14843 ⋅63391.

It can be written as a sum of positive squares in 2 ways, for example, as 118113424 + 198105625 = 10868^2 + 14075^2 .

It is a cyclic number.

It is not a de Polignac number, because 316219049 - 2²⁰ = 315170473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316219039) 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, 31562 + ... + 40355.

It is an arithmetic number, because the mean of its divisors is an integer number (79073841).

Almost surely, 2^316219049 is an apocalyptic number.

It is an amenable number.

316219049 is a deficient number, since it is larger than the sum of its proper divisors (76315).

316219049 is an equidigital number, since it uses as much as digits as its factorization.

316219049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76314.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 316219049 is about 17782.5490017601. The cubic root of 316219049 is about 681.2858089193.

The spelling of 316219049 in words is "three hundred sixteen million, two hundred nineteen thousand, forty-nine".