2105641479 has 4 divisors (see below), whose sum is σ = 2807521976. Its totient is φ = 1403760984.

The previous prime is 2105641459. The next prime is 2105641507. The reversal of 2105641479 is 9741465012.

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

It is not a de Polignac number, because 2105641479 - 2⁹ = 2105640967 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 (2105641429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350940244 + ... + 350940249.

It is an arithmetic number, because the mean of its divisors is an integer number (701880494).

Almost surely, 2^2105641479 is an apocalyptic number.

2105641479 is a deficient number, since it is larger than the sum of its proper divisors (701880497).

2105641479 is an equidigital number, since it uses as much as digits as its factorization.

2105641479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701880496.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2105641479 is about 45887.2692475811. The cubic root of 2105641479 is about 1281.7248635409.

The spelling of 2105641479 in words is "two billion, one hundred five million, six hundred forty-one thousand, four hundred seventy-nine".