2162045 has 8 divisors (see below), whose sum is σ = 2609880. Its totient is φ = 1719360.

The previous prime is 2162003. The next prime is 2162057. The reversal of 2162045 is 5402612.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56644 + 2105401 = 238^2 + 1451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2162045 - 2¹⁸ = 1899901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (326235).

2^2162045 is an apocalyptic number.

It is an amenable number.

2162045 is a deficient number, since it is larger than the sum of its proper divisors (447835).

2162045 is a wasteful number, since it uses less digits than its factorization.

2162045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2162045 is about 1470.3894042056. The cubic root of 2162045 is about 129.3068631543.

Adding to 2162045 its reverse (5402612), we get a palindrome (7564657).

The spelling of 2162045 in words is "two million, one hundred sixty-two thousand, forty-five".