2162147 has 4 divisors (see below), whose sum is σ = 2328480. Its totient is φ = 1995816.

The previous prime is 2162137. The next prime is 2162177. The reversal of 2162147 is 7412612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2162147 - 2¹⁴ = 2145763 is a prime.

It is a super-3 number, since 3×2162147³ = 30323331029289451569, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83147 + ... + 83172.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

2^2162147 is an apocalyptic number.

2162147 is a deficient number, since it is larger than the sum of its proper divisors (166333).

2162147 is a wasteful number, since it uses less digits than its factorization.

2162147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166332.

The product of its digits is 672, while the sum is 23.

The square root of 2162147 is about 1470.4240884860. The cubic root of 2162147 is about 129.3088965829.

Adding to 2162147 its reverse (7412612), we get a palindrome (9574759).

The spelling of 2162147 in words is "two million, one hundred sixty-two thousand, one hundred forty-seven".