4245515 has 4 divisors (see below), whose sum is σ = 5094624. Its totient is φ = 3396408.

The previous prime is 4245511. The next prime is 4245517. The reversal of 4245515 is 5155424.

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

It is a cyclic number.

It is not a de Polignac number, because 4245515 - 2² = 4245511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4245511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 424547 + ... + 424556.

It is an arithmetic number, because the mean of its divisors is an integer number (1273656).

Almost surely, 2^4245515 is an apocalyptic number.

4245515 is a deficient number, since it is larger than the sum of its proper divisors (849109).

4245515 is an equidigital number, since it uses as much as digits as its factorization.

4245515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849108.

The product of its digits is 4000, while the sum is 26.

The square root of 4245515 is about 2060.4647533991. The cubic root of 4245515 is about 161.9235909543.

Subtracting 4245515 from its reverse (5155424), we obtain a palindrome (909909).

The spelling of 4245515 in words is "four million, two hundred forty-five thousand, five hundred fifteen".