4542245 has 4 divisors (see below), whose sum is σ = 5450700. Its totient is φ = 3633792.

The previous prime is 4542211. The next prime is 4542253. The reversal of 4542245 is 5422454.

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 1437601 + 3104644 = 1199^2 + 1762^2 .

It is a cyclic number.

It is not a de Polignac number, because 4542245 - 2⁸ = 4541989 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 454220 + ... + 454229.

It is an arithmetic number, because the mean of its divisors is an integer number (1362675).

Almost surely, 2^4542245 is an apocalyptic number.

It is an amenable number.

4542245 is a deficient number, since it is larger than the sum of its proper divisors (908455).

4542245 is an equidigital number, since it uses as much as digits as its factorization.

4542245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908454.

The product of its digits is 6400, while the sum is 26.

The square root of 4542245 is about 2131.2543255088. The cubic root of 4542245 is about 165.6113834777.

Adding to 4542245 its reverse (5422454), we get a palindrome (9964699).

The spelling of 4542245 in words is "four million, five hundred forty-two thousand, two hundred forty-five".