2162745 has 24 divisors (see below), whose sum is σ = 4038216. Its totient is φ = 1064448.

The previous prime is 2162737. The next prime is 2162747. The reversal of 2162745 is 5472612.

It can be written as a sum of positive squares in 4 ways, for example, as 28224 + 2134521 = 168^2 + 1461^2 .

It is not a de Polignac number, because 2162745 - 2³ = 2162737 is a prime.

It is a d-powerful number, because it can be written as 2³ + 1 + 6² + 2²¹ + 7 + 4⁸ + 5 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2162747) 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, 1264 + ... + 2433.

It is an arithmetic number, because the mean of its divisors is an integer number (168259).

2^2162745 is an apocalyptic number.

It is an amenable number.

2162745 is a deficient number, since it is larger than the sum of its proper divisors (1875471).

2162745 is a wasteful number, since it uses less digits than its factorization.

2162745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721 (or 3718 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 2162745 is about 1470.6274171251. The cubic root of 2162745 is about 129.3208167703.

The spelling of 2162745 in words is "two million, one hundred sixty-two thousand, seven hundred forty-five".