2945213 has 4 divisors (see below), whose sum is σ = 2951388. Its totient is φ = 2939040.

The previous prime is 2945207. The next prime is 2945227. The reversal of 2945213 is 3125492.

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 1592644 + 1352569 = 1262^2 + 1163^2 .

It is a cyclic number.

It is not a de Polignac number, because 2945213 - 2⁶ = 2945149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2306 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (737847).

2^2945213 is an apocalyptic number.

It is an amenable number.

2945213 is a deficient number, since it is larger than the sum of its proper divisors (6175).

2945213 is an equidigital number, since it uses as much as digits as its factorization.

2945213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6174.

The product of its digits is 2160, while the sum is 26.

The square root of 2945213 is about 1716.1622883632. The cubic root of 2945213 is about 143.3415961825.

The spelling of 2945213 in words is "two million, nine hundred forty-five thousand, two hundred thirteen".