2105351251 has 32 divisors (see below), whose sum is σ = 2292111360. Its totient is φ = 1929844224.

The previous prime is 2105351243. The next prime is 2105351273. The reversal of 2105351251 is 1521535012.

It is a cyclic number.

It is not a de Polignac number, because 2105351251 - 2³ = 2105351243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2105351201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9440926 + ... + 9441148.

It is an arithmetic number, because the mean of its divisors is an integer number (71628480).

Almost surely, 2^2105351251 is an apocalyptic number.

2105351251 is a deficient number, since it is larger than the sum of its proper divisors (186760109).

2105351251 is a wasteful number, since it uses less digits than its factorization.

2105351251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2105351251 is about 45884.1067364289. The cubic root of 2105351251 is about 1281.6659726138.

Adding to 2105351251 its reverse (1521535012), we get a palindrome (3626886263).

The spelling of 2105351251 in words is "two billion, one hundred five million, three hundred fifty-one thousand, two hundred fifty-one".