5345 has 4 divisors (see below), whose sum is σ = 6420. Its totient is φ = 4272.

The previous prime is 5333. The next prime is 5347. The reversal of 5345 is 5435.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5435 = 5 ⋅1087.

It can be written as a sum of positive squares in 2 ways, for example, as 2209 + 3136 = 47^2 + 56^2 .

It is a cyclic number.

It is not a de Polignac number, because 5345 - 2⁶ = 5281 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5347) 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, 530 + ... + 539.

It is an arithmetic number, because the mean of its divisors is an integer number (1605).

2⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

5345 is a deficient number, since it is larger than the sum of its proper divisors (1075).

5345 is a wasteful number, since it uses less digits than its factorization.

5345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074.

The product of its digits is 300, while the sum is 17.

The square root of 5345 is about 73.1095069057. The cubic root of 5345 is about 17.4843397317.

The spelling of 5345 in words is "five thousand, three hundred forty-five".