4152985 has 4 divisors (see below), whose sum is σ = 4983588. Its totient is φ = 3322384.

The previous prime is 4152971. The next prime is 4152989. The reversal of 4152985 is 5892514.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5892514 = 2 ⋅2946257.

It can be written as a sum of positive squares in 2 ways, for example, as 3225616 + 927369 = 1796^2 + 963^2 .

It is a cyclic number.

It is not a de Polignac number, because 4152985 - 2¹⁹ = 3628697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4152985.

It is not an unprimeable number, because it can be changed into a prime (4152989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415294 + ... + 415303.

It is an arithmetic number, because the mean of its divisors is an integer number (1245897).

Almost surely, 2^4152985 is an apocalyptic number.

It is an amenable number.

4152985 is a deficient number, since it is larger than the sum of its proper divisors (830603).

4152985 is an equidigital number, since it uses as much as digits as its factorization.

4152985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830602.

The product of its digits is 14400, while the sum is 34.

The square root of 4152985 is about 2037.8873864863. The cubic root of 4152985 is about 160.7385775862.

It can be divided in two parts, 41529 and 85, that added together give a palindrome (41614).

The spelling of 4152985 in words is "four million, one hundred fifty-two thousand, nine hundred eighty-five".