2105346729 has 8 divisors (see below), whose sum is σ = 2809887840. Its totient is φ = 1402185056.

The previous prime is 2105346721. The next prime is 2105346767. The reversal of 2105346729 is 9276435012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105346729 - 2³ = 2105346721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105346721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341292 + ... + 347405.

It is an arithmetic number, because the mean of its divisors is an integer number (351235980).

Almost surely, 2^2105346729 is an apocalyptic number.

It is an amenable number.

2105346729 is a deficient number, since it is larger than the sum of its proper divisors (704541111).

2105346729 is a wasteful number, since it uses less digits than its factorization.

2105346729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689719.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 2105346729 is about 45884.0574600808. The cubic root of 2105346729 is about 1281.6650550001.

The spelling of 2105346729 in words is "two billion, one hundred five million, three hundred forty-six thousand, seven hundred twenty-nine".