3200045 has 4 divisors (see below), whose sum is σ = 3840060. Its totient is φ = 2560032.

The previous prime is 3200039. The next prime is 3200051. The reversal of 3200045 is 5400023.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3200039) and next prime (3200051).

It can be written as a sum of positive squares in 2 ways, for example, as 2550409 + 649636 = 1597^2 + 806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3200045 is a prime.

It is a Curzon number.

It is a congruent number.

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, 320000 + ... + 320009.

It is an arithmetic number, because the mean of its divisors is an integer number (960015).

Almost surely, 2^3200045 is an apocalyptic number.

It is an amenable number.

3200045 is a deficient number, since it is larger than the sum of its proper divisors (640015).

3200045 is an equidigital number, since it uses as much as digits as its factorization.

3200045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640014.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 3200045 is about 1788.8669598380. The cubic root of 3200045 is about 147.3619506983.

Adding to 3200045 its reverse (5400023), we get a palindrome (8600068).

It can be divided in two parts, 32000 and 45, that multiplied together give a square (1440000 = 1200²).

The spelling of 3200045 in words is "three million, two hundred thousand, forty-five".