2164516 has 6 divisors (see below), whose sum is σ = 3787910. Its totient is φ = 1082256.

The previous prime is 2164511. The next prime is 2164529. The reversal of 2164516 is 6154612.

It can be written as a sum of positive squares in only one way, i.e., 1254400 + 910116 = 1120^2 + 954^2 .

It is not an unprimeable number, because it can be changed into a prime (2164511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270561 + ... + 270568.

2^2164516 is an apocalyptic number.

It is an amenable number.

2164516 is a deficient number, since it is larger than the sum of its proper divisors (1623394).

2164516 is a wasteful number, since it uses less digits than its factorization.

2164516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541133 (or 541131 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 2164516 is about 1471.2294178679. The cubic root of 2164516 is about 129.3561059793.

The spelling of 2164516 in words is "two million, one hundred sixty-four thousand, five hundred sixteen".