4345123 has 4 divisors (see below), whose sum is σ = 4365928. Its totient is φ = 4324320.

The previous prime is 4345111. The next prime is 4345127. The reversal of 4345123 is 3215434.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4345123 - 2¹⁷ = 4214051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4345094 and 4345103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4345127) 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, 10086 + ... + 10507.

It is an arithmetic number, because the mean of its divisors is an integer number (1091482).

Almost surely, 2^4345123 is an apocalyptic number.

4345123 is a deficient number, since it is larger than the sum of its proper divisors (20805).

4345123 is a wasteful number, since it uses less digits than its factorization.

4345123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804.

The product of its digits is 1440, while the sum is 22.

The square root of 4345123 is about 2084.4958623130. The cubic root of 4345123 is about 163.1801613677.

It can be divided in two parts, 4345 and 123, that multiplied together give a palindrome (534435).

The spelling of 4345123 in words is "four million, three hundred forty-five thousand, one hundred twenty-three".