4861145 has 4 divisors (see below), whose sum is σ = 5833380. Its totient is φ = 3888912.

The previous prime is 4861139. The next prime is 4861217. The reversal of 4861145 is 5411684.

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 3108169 + 1752976 = 1763^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 4861145 - 2¹⁴ = 4844761 is a prime.

It is a super-2 number, since 2×4861145² = 47261461422050, which contains 22 as substring.

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, 486110 + ... + 486119.

It is an arithmetic number, because the mean of its divisors is an integer number (1458345).

Almost surely, 2^4861145 is an apocalyptic number.

It is an amenable number.

4861145 is a deficient number, since it is larger than the sum of its proper divisors (972235).

4861145 is an equidigital number, since it uses as much as digits as its factorization.

4861145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972234.

The product of its digits is 3840, while the sum is 29.

The square root of 4861145 is about 2204.8004444847. The cubic root of 4861145 is about 169.3997864535.

The spelling of 4861145 in words is "four million, eight hundred sixty-one thousand, one hundred forty-five".