2091124138 has 16 divisors (see below), whose sum is σ = 3197295360. Its totient is φ = 1025441856.

The previous prime is 2091124129. The next prime is 2091124159. The reversal of 2091124138 is 8314211902.

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, 30631 + ... + 71557.

It is an arithmetic number, because the mean of its divisors is an integer number (199830960).

Almost surely, 2^2091124138 is an apocalyptic number.

2091124138 is a deficient number, since it is larger than the sum of its proper divisors (1106171222).

2091124138 is a wasteful number, since it uses less digits than its factorization.

2091124138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41421.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 2091124138 is about 45728.8108089419. The cubic root of 2091124138 is about 1278.7724514665.

The spelling of 2091124138 in words is "two billion, ninety-one million, one hundred twenty-four thousand, one hundred thirty-eight".