4345523 has 24 divisors (see below), whose sum is σ = 5771808. Its totient is φ = 3174912.

The previous prime is 4345511. The next prime is 4345529. The reversal of 4345523 is 3255434.

It is not a de Polignac number, because 4345523 - 2¹⁰ = 4344499 is a prime.

Its product of digits (7200) is a multiple of the sum of its prime divisors (90).

It is a junction number, because it is equal to n+sod(n) for n = 4345492 and 4345501.

It is not an unprimeable number, because it can be changed into a prime (4345529) 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 23 ways as a sum of consecutive naturals, for example, 81965 + ... + 82017.

It is an arithmetic number, because the mean of its divisors is an integer number (240492).

Almost surely, 2^4345523 is an apocalyptic number.

4345523 is a deficient number, since it is larger than the sum of its proper divisors (1426285).

4345523 is a wasteful number, since it uses less digits than its factorization.

4345523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 90 counting only the distinct ones).

The product of its digits is 7200, while the sum is 26.

The square root of 4345523 is about 2084.5918065655. The cubic root of 4345523 is about 163.1851685187.

The spelling of 4345523 in words is "four million, three hundred forty-five thousand, five hundred twenty-three".