2160002 has 8 divisors (see below), whose sum is σ = 3489276. Its totient is φ = 996912.

The previous prime is 2160001. The next prime is 2160017. The reversal of 2160002 is 2000612.

It can be written as a sum of positive squares in 2 ways, for example, as 2076481 + 83521 = 1441^2 + 289^2 .

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

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2160001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41513 + ... + 41564.

2^2160002 is an apocalyptic number.

2160002 is a deficient number, since it is larger than the sum of its proper divisors (1329274).

2160002 is a wasteful number, since it uses less digits than its factorization.

2160002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83092.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2160002 is about 1469.6945260836. The cubic root of 2160002 is about 129.2661212988.

Adding to 2160002 its reverse (2000612), we get a palindrome (4160614).

The spelling of 2160002 in words is "two million, one hundred sixty thousand, two".