2119181193 has 12 divisors (see below), whose sum is σ = 3072422340. Its totient is φ = 1407533856.

The previous prime is 2119181143. The next prime is 2119181209. The reversal of 2119181193 is 3911819112.

It can be written as a sum of positive squares in 2 ways, for example, as 72795024 + 2046386169 = 8532^2 + 45237^2 .

It is not a de Polignac number, because 2119181193 - 2⁹ = 2119180681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2119181143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435246 + ... + 440087.

It is an arithmetic number, because the mean of its divisors is an integer number (256035195).

Almost surely, 2^2119181193 is an apocalyptic number.

It is an amenable number.

2119181193 is a deficient number, since it is larger than the sum of its proper divisors (953241147).

2119181193 is a wasteful number, since it uses less digits than its factorization.

2119181193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875608 (or 875605 counting only the distinct ones).

The product of its digits is 3888, while the sum is 36.

The square root of 2119181193 is about 46034.5651983377. The cubic root of 2119181193 is about 1284.4662487748.

The spelling of 2119181193 in words is "two billion, one hundred nineteen million, one hundred eighty-one thousand, one hundred ninety-three".