4722145 has 4 divisors (see below), whose sum is σ = 5666580. Its totient is φ = 3777712.

The previous prime is 4722121. The next prime is 4722163. The reversal of 4722145 is 5412274.

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 2408704 + 2313441 = 1552^2 + 1521^2 .

It is a cyclic number.

It is not a de Polignac number, because 4722145 - 2¹¹ = 4720097 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 7⁴ + 2 + 2¹⁹ + 1 + 4¹¹ + 5³ .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472210 + ... + 472219.

It is an arithmetic number, because the mean of its divisors is an integer number (1416645).

Almost surely, 2^4722145 is an apocalyptic number.

It is an amenable number.

4722145 is a deficient number, since it is larger than the sum of its proper divisors (944435).

4722145 is an equidigital number, since it uses as much as digits as its factorization.

4722145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944434.

The product of its digits is 2240, while the sum is 25.

The square root of 4722145 is about 2173.0497003060. The cubic root of 4722145 is about 167.7695370749.

The spelling of 4722145 in words is "four million, seven hundred twenty-two thousand, one hundred forty-five".