2011009192 has 8 divisors (see below), whose sum is σ = 3770642250. Its totient is φ = 1005504592.

The previous prime is 2011009181. The next prime is 2011009199. The reversal of 2011009192 is 2919001102.

It can be written as a sum of positive squares in only one way, i.e., 1402202916 + 608806276 = 37446^2 + 24674^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2011009199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125688067 + ... + 125688082.

Almost surely, 2^2011009192 is an apocalyptic number.

It is an amenable number.

2011009192 is a deficient number, since it is larger than the sum of its proper divisors (1759633058).

2011009192 is a wasteful number, since it uses less digits than its factorization.

2011009192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251376155 (or 251376151 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 2011009192 is about 44844.2771376683. The cubic root of 2011009192 is about 1262.2286064616.

The spelling of 2011009192 in words is "two billion, eleven million, nine thousand, one hundred ninety-two".