313745 has 8 divisors (see below), whose sum is σ = 380160. Its totient is φ = 248560.

The previous prime is 313741. The next prime is 313763. The reversal of 313745 is 547313.

It is a happy number.

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

It is not a de Polignac number, because 313745 - 2² = 313741 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 313745.

It is not an unprimeable number, because it can be changed into a prime (313741) 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, 416 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (47520).

2³¹³⁷⁴⁵ is an apocalyptic number.

It is an amenable number.

313745 is a deficient number, since it is larger than the sum of its proper divisors (66415).

313745 is a wasteful number, since it uses less digits than its factorization.

313745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615.

The product of its digits is 1260, while the sum is 23.

The square root of 313745 is about 560.1294493240. The cubic root of 313745 is about 67.9504396663.

The spelling of 313745 in words is "three hundred thirteen thousand, seven hundred forty-five".