4520345 has 4 divisors (see below), whose sum is σ = 5424420. Its totient is φ = 3616272.

The previous prime is 4520303. The next prime is 4520371. The reversal of 4520345 is 5430254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 595984 + 3924361 = 772^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520345 - 2⁶ = 4520281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4520345.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452030 + ... + 452039.

It is an arithmetic number, because the mean of its divisors is an integer number (1356105).

Almost surely, 2^4520345 is an apocalyptic number.

It is an amenable number.

4520345 is a deficient number, since it is larger than the sum of its proper divisors (904075).

4520345 is an equidigital number, since it uses as much as digits as its factorization.

4520345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904074.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 4520345 is about 2126.1102981736. The cubic root of 4520345 is about 165.3447947562.

Adding to 4520345 its reverse (5430254), we get a palindrome (9950599).

Subtracting 4520345 from its reverse (5430254), we obtain a palindrome (909909).

The spelling of 4520345 in words is "four million, five hundred twenty thousand, three hundred forty-five".