313145 has 16 divisors (see below), whose sum is σ = 449280. Its totient is φ = 204864.

The previous prime is 313133. The next prime is 313147. The reversal of 313145 is 541313.

It is a cyclic number.

It is not a de Polignac number, because 313145 - 2⁴ = 313129 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313145.

It is not an unprimeable number, because it can be changed into a prime (313147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 611 + ... + 999.

It is an arithmetic number, because the mean of its divisors is an integer number (28080).

2³¹³¹⁴⁵ is an apocalyptic number.

313145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

313145 is a deficient number, since it is larger than the sum of its proper divisors (136135).

313145 is a wasteful number, since it uses less digits than its factorization.

313145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 180, while the sum is 17.

The square root of 313145 is about 559.5936025367. The cubic root of 313145 is about 67.9070963133.

Adding to 313145 its reverse (541313), we get a palindrome (854458).

The spelling of 313145 in words is "three hundred thirteen thousand, one hundred forty-five".