2945745 has 36 divisors (see below), whose sum is σ = 5622708. Its totient is φ = 1425600.

The previous prime is 2945731. The next prime is 2945749. The reversal of 2945745 is 5475492.

It can be written as a sum of positive squares in 2 ways, for example, as 1115136 + 1830609 = 1056^2 + 1353^2 .

It is not a de Polignac number, because 2945745 - 2⁸ = 2945489 is a prime.

Its product of digits (50400) is a multiple of the sum of its prime divisors (560).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2945749) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5175 + ... + 5715.

2^2945745 is an apocalyptic number.

It is an amenable number.

2945745 is a deficient number, since it is larger than the sum of its proper divisors (2676963).

2945745 is a wasteful number, since it uses less digits than its factorization.

2945745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 560 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 2945745 is about 1716.3172783609. The cubic root of 2945745 is about 143.3502263606.

The spelling of 2945745 in words is "two million, nine hundred forty-five thousand, seven hundred forty-five".