316049345 has 4 divisors (see below), whose sum is σ = 379259220. Its totient is φ = 252839472.

The previous prime is 316049341. The next prime is 316049347. The reversal of 316049345 is 543940613.

It is a happy number.

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 238115761 + 77933584 = 15431^2 + 8828^2 .

It is a cyclic number.

It is not a de Polignac number, because 316049345 - 2² = 316049341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (316049341) 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, 31604930 + ... + 31604939.

It is an arithmetic number, because the mean of its divisors is an integer number (94814805).

Almost surely, 2^316049345 is an apocalyptic number.

It is an amenable number.

316049345 is a deficient number, since it is larger than the sum of its proper divisors (63209875).

316049345 is an equidigital number, since it uses as much as digits as its factorization.

316049345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63209874.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 316049345 is about 17777.7767170139. The cubic root of 316049345 is about 681.1639128096.

Adding to 316049345 its reverse (543940613), we get a palindrome (859989958).

The spelling of 316049345 in words is "three hundred sixteen million, forty-nine thousand, three hundred forty-five".