4248561 has 4 divisors (see below), whose sum is σ = 5664752. Its totient is φ = 2832372.

The previous prime is 4248557. The next prime is 4248611. The reversal of 4248561 is 1658424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4248561 - 2² = 4248557 is a prime.

It is a D-number.

It is a Duffinian number.

4248561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4248551) by changing a digit.

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, 708091 + ... + 708096.

It is an arithmetic number, because the mean of its divisors is an integer number (1416188).

Almost surely, 2^4248561 is an apocalyptic number.

It is an amenable number.

4248561 is a deficient number, since it is larger than the sum of its proper divisors (1416191).

4248561 is a wasteful number, since it uses less digits than its factorization.

4248561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416190.

The product of its digits is 7680, while the sum is 30.

The square root of 4248561 is about 2061.2037744968. The cubic root of 4248561 is about 161.9623064261.

The spelling of 4248561 in words is "four million, two hundred forty-eight thousand, five hundred sixty-one".