313123445 has 8 divisors (see below), whose sum is σ = 375844536. Its totient is φ = 250434496.

The previous prime is 313123441. The next prime is 313123451. The reversal of 313123445 is 544321313.

It can be written as a sum of positive squares in 4 ways, for example, as 42915601 + 270207844 = 6551^2 + 16438^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313123445 - 2² = 313123441 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313123441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28559 + ... + 37971.

It is an arithmetic number, because the mean of its divisors is an integer number (46980567).

Almost surely, 2^313123445 is an apocalyptic number.

It is an amenable number.

313123445 is a deficient number, since it is larger than the sum of its proper divisors (62721091).

313123445 is an equidigital number, since it uses as much as digits as its factorization.

313123445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16071.

The product of its digits is 4320, while the sum is 26.

The square root of 313123445 is about 17695.2944310062. The cubic root of 313123445 is about 679.0553817354.

Adding to 313123445 its reverse (544321313), we get a palindrome (857444758).

The spelling of 313123445 in words is "three hundred thirteen million, one hundred twenty-three thousand, four hundred forty-five".