2193455 has 16 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 1510560.

The previous prime is 2193449. The next prime is 2193463. The reversal of 2193455 is 5543912.

2193455 = 23² + 24² + ... + 187².

2193455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2193455 - 2⁴ = 2193439 is a prime.

It is a super-2 number, since 2×2193455² = 9622489674050, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 9⁵ + 3¹¹ + 4⁶ + 5 + 5⁹ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2^2193455 is an apocalyptic number.

2193455 is a deficient number, since it is larger than the sum of its proper divisors (830545).

2193455 is a wasteful number, since it uses less digits than its factorization.

2193455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134.

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

The square root of 2193455 is about 1481.0317349740. The cubic root of 2193455 is about 129.9300412543.

The spelling of 2193455 in words is "two million, one hundred ninety-three thousand, four hundred fifty-five".