3215045 has 4 divisors (see below), whose sum is σ = 3858060. Its totient is φ = 2572032.

The previous prime is 3215039. The next prime is 3215071. The reversal of 3215045 is 5405123.

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 1181569 + 2033476 = 1087^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 3215045 - 2¹⁴ = 3198661 is a prime.

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, 321500 + ... + 321509.

It is an arithmetic number, because the mean of its divisors is an integer number (964515).

Almost surely, 2^3215045 is an apocalyptic number.

It is an amenable number.

3215045 is a deficient number, since it is larger than the sum of its proper divisors (643015).

3215045 is an equidigital number, since it uses as much as digits as its factorization.

3215045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643014.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 3215045 is about 1793.0546561664. The cubic root of 3215045 is about 147.5918416820.

The spelling of 3215045 in words is "three million, two hundred fifteen thousand, forty-five".