2106102751 has 4 divisors (see below), whose sum is σ = 2106479032. Its totient is φ = 2105726472.

The previous prime is 2106102737. The next prime is 2106102773. The reversal of 2106102751 is 1572016012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2106102751 - 2⁷ = 2106102623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106102451) 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 3 ways as a sum of consecutive naturals, for example, 179616 + ... + 190981.

It is an arithmetic number, because the mean of its divisors is an integer number (526619758).

Almost surely, 2^2106102751 is an apocalyptic number.

2106102751 is a deficient number, since it is larger than the sum of its proper divisors (376281).

2106102751 is an equidigital number, since it uses as much as digits as its factorization.

2106102751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376280.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 2106102751 is about 45892.2951158471. The cubic root of 2106102751 is about 1281.8184503219.

Adding to 2106102751 its reverse (1572016012), we get a palindrome (3678118763).

The spelling of 2106102751 in words is "two billion, one hundred six million, one hundred two thousand, seven hundred fifty-one".