313245 has 12 divisors (see below), whose sum is σ = 543036. Its totient is φ = 167040.

The previous prime is 313241. The next prime is 313249. The reversal of 313245 is 542313.

It is an interprime number because it is at equal distance from previous prime (313241) and next prime (313249).

It can be written as a sum of positive squares in 2 ways, for example, as 181476 + 131769 = 426^2 + 363^2 .

It is not a de Polignac number, because 313245 - 2² = 313241 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313245.

It is not an unprimeable number, because it can be changed into a prime (313241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3436 + ... + 3525.

It is an arithmetic number, because the mean of its divisors is an integer number (45253).

2³¹³²⁴⁵ is an apocalyptic number.

It is an amenable number.

313245 is a deficient number, since it is larger than the sum of its proper divisors (229791).

313245 is a wasteful number, since it uses less digits than its factorization.

313245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972 (or 6969 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 313245 is about 559.6829459614. The cubic root of 313245 is about 67.9143240480.

Adding to 313245 its reverse (542313), we get a palindrome (855558).

It can be divided in two parts, 31324 and 5, that added together give a square (31329 = 177²).

The spelling of 313245 in words is "three hundred thirteen thousand, two hundred forty-five".