2154203 has 8 divisors (see below), whose sum is σ = 2263200. Its totient is φ = 2046528.

The previous prime is 2154193. The next prime is 2154209. The reversal of 2154203 is 3024512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2154203 - 2²⁰ = 1105627 is a prime.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2154209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5063 + ... + 5471.

It is an arithmetic number, because the mean of its divisors is an integer number (282900).

2^2154203 is an apocalyptic number.

2154203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2154203 is a deficient number, since it is larger than the sum of its proper divisors (108997).

2154203 is a wasteful number, since it uses less digits than its factorization.

2154203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2154203 is about 1467.7203412095. The cubic root of 2154203 is about 129.1503365180.

Adding to 2154203 its reverse (3024512), we get a palindrome (5178715).

The spelling of 2154203 in words is "two million, one hundred fifty-four thousand, two hundred three".