4452145 has 4 divisors (see below), whose sum is σ = 5342580. Its totient is φ = 3561712.

The previous prime is 4452143. The next prime is 4452157. The reversal of 4452145 is 5412544.

It is a happy number.

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 579121 + 3873024 = 761^2 + 1968^2 .

It is a cyclic number.

It is not a de Polignac number, because 4452145 - 2¹ = 4452143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4452143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 445210 + ... + 445219.

It is an arithmetic number, because the mean of its divisors is an integer number (1335645).

Almost surely, 2^4452145 is an apocalyptic number.

It is an amenable number.

4452145 is a deficient number, since it is larger than the sum of its proper divisors (890435).

4452145 is an equidigital number, since it uses as much as digits as its factorization.

4452145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890434.

The product of its digits is 3200, while the sum is 25.

The square root of 4452145 is about 2110.0106634802. The cubic root of 4452145 is about 164.5090395158.

Adding to 4452145 its reverse (5412544), we get a palindrome (9864689).

The spelling of 4452145 in words is "four million, four hundred fifty-two thousand, one hundred forty-five".