2945145 has 24 divisors (see below), whose sum is σ = 5482944. Its totient is φ = 1346016.

The previous prime is 2945123. The next prime is 2945147. The reversal of 2945145 is 5415492.

It is not a de Polignac number, because 2945145 - 2¹² = 2941049 is a prime.

2945145 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2945147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1269 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (228456).

2^2945145 is an apocalyptic number.

It is an amenable number.

2945145 is a deficient number, since it is larger than the sum of its proper divisors (2537799).

2945145 is a wasteful number, since it uses less digits than its factorization.

2945145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4029 (or 4022 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 2945145 is about 1716.1424766027. The cubic root of 2945145 is about 143.3404930021.

The spelling of 2945145 in words is "two million, nine hundred forty-five thousand, one hundred forty-five".