2109291092 has 6 divisors (see below), whose sum is σ = 3691259418. Its totient is φ = 1054645544.

The previous prime is 2109291089. The next prime is 2109291103. The reversal of 2109291092 is 2901929012.

It can be written as a sum of positive squares in only one way, i.e., 2108279056 + 1012036 = 45916^2 + 1006^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263661383 + ... + 263661390.

It is an arithmetic number, because the mean of its divisors is an integer number (615209903).

Almost surely, 2^2109291092 is an apocalyptic number.

It is an amenable number.

2109291092 is a deficient number, since it is larger than the sum of its proper divisors (1581968326).

2109291092 is a wasteful number, since it uses less digits than its factorization.

2109291092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527322777 (or 527322775 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 2109291092 is about 45927.0191934987. The cubic root of 2109291092 is about 1282.4649546666.

The spelling of 2109291092 in words is "two billion, one hundred nine million, two hundred ninety-one thousand, ninety-two".