2108155494 has 16 divisors (see below), whose sum is σ = 4243168368. Its totient is φ = 698242272.

The previous prime is 2108155481. The next prime is 2108155513. The reversal of 2108155494 is 4945518012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118037 + ... + 1119920.

It is an arithmetic number, because the mean of its divisors is an integer number (265198023).

Almost surely, 2^2108155494 is an apocalyptic number.

2108155494 is an abundant number, since it is smaller than the sum of its proper divisors (2135012874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2108155494 is a wasteful number, since it uses less digits than its factorization.

2108155494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238119.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 2108155494 is about 45914.6544580268. The cubic root of 2108155494 is about 1282.2347626240.

The spelling of 2108155494 in words is "two billion, one hundred eight million, one hundred fifty-five thousand, four hundred ninety-four".