2193505 has 4 divisors (see below), whose sum is σ = 2632212. Its totient is φ = 1754800.

The previous prime is 2193481. The next prime is 2193509. The reversal of 2193505 is 5053912.

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

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 1420864 = 879^2 + 1192^2 .

It is not a de Polignac number, because 2193505 - 2¹¹ = 2191457 is a prime.

It is a super-2 number, since 2×2193505² = 9622928370050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2193505.

It is not an unprimeable number, because it can be changed into a prime (2193509) 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, 219346 + ... + 219355.

It is an arithmetic number, because the mean of its divisors is an integer number (658053).

2^2193505 is an apocalyptic number.

It is an amenable number.

2193505 is a deficient number, since it is larger than the sum of its proper divisors (438707).

2193505 is an equidigital number, since it uses as much as digits as its factorization.

2193505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438706.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 2193505 is about 1481.0486150022. The cubic root of 2193505 is about 129.9310285024.

The spelling of 2193505 in words is "two million, one hundred ninety-three thousand, five hundred five".