2945215 has 16 divisors (see below), whose sum is σ = 4350528. Its totient is φ = 1863936.

The previous prime is 2945207. The next prime is 2945227. The reversal of 2945215 is 5125492.

It is a cyclic number.

It is not a de Polignac number, because 2945215 - 2³ = 2945207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782 + ... + 3691.

It is an arithmetic number, because the mean of its divisors is an integer number (271908).

2^2945215 is an apocalyptic number.

2945215 is a deficient number, since it is larger than the sum of its proper divisors (1405313).

2945215 is a wasteful number, since it uses less digits than its factorization.

2945215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498.

The product of its digits is 3600, while the sum is 28.

The square root of 2945215 is about 1716.1628710586. The cubic root of 2945215 is about 143.3416286287.

It can be divided in two parts, 2945 and 215, that added together give a triangular number (3160 = T₇₉).

The spelling of 2945215 in words is "two million, nine hundred forty-five thousand, two hundred fifteen".