2155203 has 12 divisors (see below), whose sum is σ = 3186040. Its totient is φ = 1403136.

The previous prime is 2155201. The next prime is 2155207. The reversal of 2155203 is 3025512.

It is a happy number.

It is not a de Polignac number, because 2155203 - 2¹ = 2155201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2398 + ... + 3171.

2^2155203 is an apocalyptic number.

2155203 is a deficient number, since it is larger than the sum of its proper divisors (1030837).

2155203 is a wasteful number, since it uses less digits than its factorization.

2155203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5618 (or 5615 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2155203 is about 1468.0609660365. The cubic root of 2155203 is about 129.1703176676.

The spelling of 2155203 in words is "two million, one hundred fifty-five thousand, two hundred three".