2113906173 has 8 divisors (see below), whose sum is σ = 2822671008. Its totient is φ = 1407206064.

The previous prime is 2113906153. The next prime is 2113906177. The reversal of 2113906173 is 3716093112.

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

It is not a de Polignac number, because 2113906173 - 2⁵ = 2113906141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113906177) 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, 513790 + ... + 517887.

It is an arithmetic number, because the mean of its divisors is an integer number (352833876).

Almost surely, 2^2113906173 is an apocalyptic number.

It is an amenable number.

2113906173 is a deficient number, since it is larger than the sum of its proper divisors (708764835).

2113906173 is a wasteful number, since it uses less digits than its factorization.

2113906173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032363.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 2113906173 is about 45977.2353779563. The cubic root of 2113906173 is about 1283.3996080614.

Adding to 2113906173 its reverse (3716093112), we get a palindrome (5829999285).

The spelling of 2113906173 in words is "two billion, one hundred thirteen million, nine hundred six thousand, one hundred seventy-three".