4609145 has 8 divisors (see below), whose sum is σ = 5635656. Its totient is φ = 3617536.

The previous prime is 4609133. The next prime is 4609169. The reversal of 4609145 is 5419064.

It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 4239481 = 608^2 + 2059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4609145 - 2⁶ = 4609081 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 8432 + ... + 8961.

It is an arithmetic number, because the mean of its divisors is an integer number (704457).

Almost surely, 2^4609145 is an apocalyptic number.

It is an amenable number.

4609145 is a deficient number, since it is larger than the sum of its proper divisors (1026511).

4609145 is a wasteful number, since it uses less digits than its factorization.

4609145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17451.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 4609145 is about 2146.8919395256. The cubic root of 4609145 is about 166.4204876655.

The spelling of 4609145 in words is "four million, six hundred nine thousand, one hundred forty-five".