2100253 has 2 divisors, whose sum is σ = 2100254. Its totient is φ = 2100252.

The previous prime is 2100247. The next prime is 2100257. The reversal of 2100253 is 3520012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1996569 + 103684 = 1413^2 + 322^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100253 - 2⁵ = 2100221 is a prime.

It is a super-2 number, since 2×2100253² = 8822125328018, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050126 + 1050127.

It is an arithmetic number, because the mean of its divisors is an integer number (1050127).

2^2100253 is an apocalyptic number.

It is an amenable number.

2100253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100253 is an equidigital number, since it uses as much as digits as its factorization.

2100253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2100253 is about 1449.2249652832. The cubic root of 2100253 is about 128.0630589356.

Adding to 2100253 its reverse (3520012), we get a palindrome (5620265).

The spelling of 2100253 in words is "two million, one hundred thousand, two hundred fifty-three".