2103256 has 16 divisors (see below), whose sum is σ = 3961800. Its totient is φ = 1046784.

The previous prime is 2103239. The next prime is 2103301. The reversal of 2103256 is 6523012.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1800 + ... + 2728.

2^2103256 is an apocalyptic number.

It is an amenable number.

2103256 is a deficient number, since it is larger than the sum of its proper divisors (1858544).

2103256 is a wasteful number, since it uses less digits than its factorization.

2103256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1214 counting only the distinct ones).

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

The square root of 2103256 is about 1450.2606662252. The cubic root of 2103256 is about 128.1240659063.

Adding to 2103256 its reverse (6523012), we get a palindrome (8626268).

The spelling of 2103256 in words is "two million, one hundred three thousand, two hundred fifty-six".