2105012355 has 8 divisors (see below), whose sum is σ = 3368019792. Its totient is φ = 1122673248.

The previous prime is 2105012353. The next prime is 2105012363. The reversal of 2105012355 is 5532105012.

It is a happy number.

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

It is not a de Polignac number, because 2105012355 - 2¹ = 2105012353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105012353) 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 7 ways as a sum of consecutive naturals, for example, 70167064 + ... + 70167093.

It is an arithmetic number, because the mean of its divisors is an integer number (421002474).

Almost surely, 2^2105012355 is an apocalyptic number.

2105012355 is a deficient number, since it is larger than the sum of its proper divisors (1263007437).

2105012355 is a wasteful number, since it uses less digits than its factorization.

2105012355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140334165.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 2105012355 is about 45880.4136315269. The cubic root of 2105012355 is about 1281.5971994849.

Adding to 2105012355 its reverse (5532105012), we get a palindrome (7637117367).

The spelling of 2105012355 in words is "two billion, one hundred five million, twelve thousand, three hundred fifty-five".