3191138193 has 8 divisors (see below), whose sum is σ = 4292504928. Its totient is φ = 2108598464.

The previous prime is 3191138189. The next prime is 3191138207. The reversal of 3191138193 is 3918311913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3191138193 - 2² = 3191138189 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3191138143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4706355 + ... + 4707032.

It is an arithmetic number, because the mean of its divisors is an integer number (536563116).

Almost surely, 2^3191138193 is an apocalyptic number.

It is an amenable number.

3191138193 is a deficient number, since it is larger than the sum of its proper divisors (1101366735).

3191138193 is a wasteful number, since it uses less digits than its factorization.

3191138193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9413503.

The product of its digits is 17496, while the sum is 39.

The square root of 3191138193 is about 56490.1601431612. The cubic root of 3191138193 is about 1472.2510428169.

The spelling of 3191138193 in words is "three billion, one hundred ninety-one million, one hundred thirty-eight thousand, one hundred ninety-three".