4065245 has 4 divisors (see below), whose sum is σ = 4878300. Its totient is φ = 3252192.

The previous prime is 4065241. The next prime is 4065283. The reversal of 4065245 is 5425604.

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 1865956 + 2199289 = 1366^2 + 1483^2 .

It is a cyclic number.

It is not a de Polignac number, because 4065245 - 2² = 4065241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4065241) 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, 406520 + ... + 406529.

It is an arithmetic number, because the mean of its divisors is an integer number (1219575).

Almost surely, 2^4065245 is an apocalyptic number.

It is an amenable number.

4065245 is a deficient number, since it is larger than the sum of its proper divisors (813055).

4065245 is an equidigital number, since it uses as much as digits as its factorization.

4065245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813054.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 4065245 is about 2016.2452727781. The cubic root of 4065245 is about 159.5985377889.

The spelling of 4065245 in words is "four million, sixty-five thousand, two hundred forty-five".