2661203 has 4 divisors (see below), whose sum is σ = 2675328. Its totient is φ = 2647080.

The previous prime is 2661199. The next prime is 2661221. The reversal of 2661203 is 3021662.

2661203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2661203 - 2² = 2661199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661233) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6776 + ... + 7157.

It is an arithmetic number, because the mean of its divisors is an integer number (668832).

2^2661203 is an apocalyptic number.

2661203 is a deficient number, since it is larger than the sum of its proper divisors (14125).

2661203 is a wasteful number, since it uses less digits than its factorization.

2661203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14124.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2661203 is about 1631.3194046538. The cubic root of 2661203 is about 138.5774827431.

Adding to 2661203 its reverse (3021662), we get a palindrome (5682865).

The spelling of 2661203 in words is "two million, six hundred sixty-one thousand, two hundred three".