2105135461 has 32 divisors (see below), whose sum is σ = 2588277888. Its totient is φ = 1686147840.

The previous prime is 2105135453. The next prime is 2105135471. The reversal of 2105135461 is 1645315012.

It is not a de Polignac number, because 2105135461 - 2³ = 2105135453 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 (2105135411) 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, 276670 + ... + 284176.

It is an arithmetic number, because the mean of its divisors is an integer number (80883684).

Almost surely, 2^2105135461 is an apocalyptic number.

It is an amenable number.

2105135461 is a deficient number, since it is larger than the sum of its proper divisors (483142427).

2105135461 is a wasteful number, since it uses less digits than its factorization.

2105135461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2105135461 is about 45881.7552083614. The cubic root of 2105135461 is about 1281.6221825891.

The spelling of 2105135461 in words is "two billion, one hundred five million, one hundred thirty-five thousand, four hundred sixty-one".