4515861 has 16 divisors (see below), whose sum is σ = 6912000. Its totient is φ = 2569008.

The previous prime is 4515857. The next prime is 4515871. The reversal of 4515861 is 1685154.

It is not a de Polignac number, because 4515861 - 2² = 4515857 is a prime.

4515861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4515821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7240 + ... + 7838.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 2^4515861 is an apocalyptic number.

It is an amenable number.

4515861 is a deficient number, since it is larger than the sum of its proper divisors (2396139).

4515861 is a wasteful number, since it uses less digits than its factorization.

4515861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 4800, while the sum is 30.

The square root of 4515861 is about 2125.0555286863. The cubic root of 4515861 is about 165.2901048787.

The spelling of 4515861 in words is "four million, five hundred fifteen thousand, eight hundred sixty-one".