2107112405 has 16 divisors (see below), whose sum is σ = 2553318768. Its totient is φ = 1669248000.

The previous prime is 2107112401. The next prime is 2107112431. The reversal of 2107112405 is 5042117012.

It can be written as a sum of positive squares in 8 ways, for example, as 801229636 + 1305882769 = 28306^2 + 36137^2 .

It is not a de Polignac number, because 2107112405 - 2² = 2107112401 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 (2107112401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213275 + ... + 222935.

It is an arithmetic number, because the mean of its divisors is an integer number (159582423).

Almost surely, 2^2107112405 is an apocalyptic number.

It is an amenable number.

2107112405 is a deficient number, since it is larger than the sum of its proper divisors (446206363).

2107112405 is a wasteful number, since it uses less digits than its factorization.

2107112405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10088.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2107112405 is about 45903.2940539130. The cubic root of 2107112405 is about 1282.0232498219.

Adding to 2107112405 its reverse (5042117012), we get a palindrome (7149229417).

The spelling of 2107112405 in words is "two billion, one hundred seven million, one hundred twelve thousand, four hundred five".