2158203 has 8 divisors (see below), whose sum is σ = 2894400. Its totient is φ = 1430408.

The previous prime is 2158183. The next prime is 2158223. The reversal of 2158203 is 3028512.

It is an interprime number because it is at equal distance from previous prime (2158183) and next prime (2158223).

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 2158203 - 2⁵ = 2158171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2158203.

It is not an unprimeable number, because it can be changed into a prime (2158223) 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, 1473 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (361800).

2^2158203 is an apocalyptic number.

2158203 is a deficient number, since it is larger than the sum of its proper divisors (736197).

2158203 is a wasteful number, since it uses less digits than its factorization.

2158203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2158203 is about 1469.0823666493. The cubic root of 2158203 is about 129.2302240569.

The spelling of 2158203 in words is "two million, one hundred fifty-eight thousand, two hundred three".