2160045 has 24 divisors (see below), whose sum is σ = 3908736. Its totient is φ = 1101408.

The previous prime is 2160031. The next prime is 2160061. The reversal of 2160045 is 5400612.

It is a happy number.

2160045 is a `hidden beast` number, since 21 + 600 + 45 = 666.

It is not a de Polignac number, because 2160045 - 2⁴ = 2160029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9 + ... + 2078.

It is an arithmetic number, because the mean of its divisors is an integer number (162864).

2^2160045 is an apocalyptic number.

It is an amenable number.

2160045 is a deficient number, since it is larger than the sum of its proper divisors (1748691).

2160045 is a wasteful number, since it uses less digits than its factorization.

2160045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2160045 is about 1469.7091549011. The cubic root of 2160045 is about 129.2669790768.

Adding to 2160045 its reverse (5400612), we get a palindrome (7560657).

The spelling of 2160045 in words is "two million, one hundred sixty thousand, forty-five".