2193545 has 16 divisors (see below), whose sum is σ = 2757888. Its totient is φ = 1673280.

The previous prime is 2193523. The next prime is 2193547. The reversal of 2193545 is 5453912.

It is not a de Polignac number, because 2193545 - 2⁶ = 2193481 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 9⁵ + 3¹¹ + 5³ + 4⁶ + 5⁹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2193547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13052 + ... + 13218.

It is an arithmetic number, because the mean of its divisors is an integer number (172368).

2^2193545 is an apocalyptic number.

It is an amenable number.

2193545 is a deficient number, since it is larger than the sum of its proper divisors (564343).

2193545 is a wasteful number, since it uses less digits than its factorization.

2193545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280.

The product of its digits is 5400, while the sum is 29.

The square root of 2193545 is about 1481.0621188863. The cubic root of 2193545 is about 129.9318182901.

The spelling of 2193545 in words is "two million, one hundred ninety-three thousand, five hundred forty-five".