2196505 has 16 divisors (see below), whose sum is σ = 2801664. Its totient is φ = 1650240.

The previous prime is 2196499. The next prime is 2196529. The reversal of 2196505 is 5056912.

It is not a de Polignac number, because 2196505 - 2⁵ = 2196473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 5544 + ... + 5926.

It is an arithmetic number, because the mean of its divisors is an integer number (175104).

2^2196505 is an apocalyptic number.

It is an amenable number.

2196505 is a deficient number, since it is larger than the sum of its proper divisors (605159).

2196505 is a wasteful number, since it uses less digits than its factorization.

2196505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2196505 is about 1482.0610648688. The cubic root of 2196505 is about 129.9902359531.

It can be divided in two parts, 2196 and 505, that added together give a triangular number (2701 = T₇₃).

The spelling of 2196505 in words is "two million, one hundred ninety-six thousand, five hundred five".