2191241235 has 32 divisors (see below), whose sum is σ = 3536064000. Its totient is φ = 1158674688.

The previous prime is 2191241201. The next prime is 2191241237. The reversal of 2191241235 is 5321421912.

It is not a de Polignac number, because 2191241235 - 2¹⁴ = 2191224851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2191241237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1249119 + ... + 1250871.

It is an arithmetic number, because the mean of its divisors is an integer number (110502000).

Almost surely, 2^2191241235 is an apocalyptic number.

2191241235 is a deficient number, since it is larger than the sum of its proper divisors (1344822765).

2191241235 is a wasteful number, since it uses less digits than its factorization.

2191241235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2427.

The product of its digits is 4320, while the sum is 30.

The square root of 2191241235 is about 46810.6957329198. The cubic root of 2191241235 is about 1298.8631550385.

The spelling of 2191241235 in words is "two billion, one hundred ninety-one million, two hundred forty-one thousand, two hundred thirty-five".