2203156 has 6 divisors (see below), whose sum is σ = 3855530. Its totient is φ = 1101576.

The previous prime is 2203153. The next prime is 2203163. The reversal of 2203156 is 6513022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2202256 + 900 = 1484^2 + 30^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275391 + ... + 275398.

2^2203156 is an apocalyptic number.

It is an amenable number.

2203156 is a deficient number, since it is larger than the sum of its proper divisors (1652374).

2203156 is a wasteful number, since it uses less digits than its factorization.

2203156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550793 (or 550791 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2203156 is about 1484.3032035268. The cubic root of 2203156 is about 130.1213068880.

Adding to 2203156 its reverse (6513022), we get a palindrome (8716178).

The spelling of 2203156 in words is "two million, two hundred three thousand, one hundred fifty-six".