2103953 has 2 divisors, whose sum is σ = 2103954. Its totient is φ = 2103952.

The previous prime is 2103919. The next prime is 2103961. The reversal of 2103953 is 3593012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 300304 = 1343^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103953 - 2¹⁶ = 2038417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2103973) 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, 1051976 + 1051977.

It is an arithmetic number, because the mean of its divisors is an integer number (1051977).

2^2103953 is an apocalyptic number.

It is an amenable number.

2103953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103953 is an equidigital number, since it uses as much as digits as its factorization.

2103953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2103953 is about 1450.5009479487. The cubic root of 2103953 is about 128.1382173951.

Adding to 2103953 its reverse (3593012), we get a palindrome (5696965).

The spelling of 2103953 in words is "two million, one hundred three thousand, nine hundred fifty-three".