2197505 has 16 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 1632000.

The previous prime is 2197501. The next prime is 2197513. The reversal of 2197505 is 5057912.

It is not a de Polignac number, because 2197505 - 2² = 2197501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2197501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8630 + ... + 8880.

It is an arithmetic number, because the mean of its divisors is an integer number (176904).

It is a Proth number, since it is equal to 1073 ⋅ 2¹¹ + 1 and 1073 < 2¹¹.

2^2197505 is an apocalyptic number.

It is an amenable number.

2197505 is a deficient number, since it is larger than the sum of its proper divisors (632959).

2197505 is a wasteful number, since it uses less digits than its factorization.

2197505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its (nonzero) digits is 3150, while the sum is 29.

The square root of 2197505 is about 1482.3983944945. The cubic root of 2197505 is about 130.0099597892.

The spelling of 2197505 in words is "two million, one hundred ninety-seven thousand, five hundred five".