4520245 has 4 divisors (see below), whose sum is σ = 5424300. Its totient is φ = 3616192.

The previous prime is 4520239. The next prime is 4520261. The reversal of 4520245 is 5420254.

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 3017169 + 1503076 = 1737^2 + 1226^2 .

It is a cyclic number.

It is not a de Polignac number, because 4520245 - 2³ = 4520237 is a prime.

It is a super-2 number, since 2×4520245² = 40865229720050, which contains 22 as substring.

It is a congruent number.

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, 452020 + ... + 452029.

It is an arithmetic number, because the mean of its divisors is an integer number (1356075).

Almost surely, 2^4520245 is an apocalyptic number.

It is an amenable number.

4520245 is a deficient number, since it is larger than the sum of its proper divisors (904055).

4520245 is an equidigital number, since it uses as much as digits as its factorization.

4520245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904054.

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 4520245 is about 2126.0867809193. The cubic root of 4520245 is about 165.3435754834.

Adding to 4520245 its reverse (5420254), we get a palindrome (9940499).

Subtracting 4520245 from its reverse (5420254), we obtain a palindrome (900009).

The spelling of 4520245 in words is "four million, five hundred twenty thousand, two hundred forty-five".