3198642171 has 4 divisors (see below), whose sum is σ = 4264856232. Its totient is φ = 2132428112.

The previous prime is 3198642143. The next prime is 3198642173. The reversal of 3198642171 is 1712468913.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1712468913 = 3 ⋅570822971.

It is a cyclic number.

It is not a de Polignac number, because 3198642171 - 2⁷ = 3198642043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3198642173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533107026 + ... + 533107031.

It is an arithmetic number, because the mean of its divisors is an integer number (1066214058).

Almost surely, 2^3198642171 is an apocalyptic number.

3198642171 is a deficient number, since it is larger than the sum of its proper divisors (1066214061).

3198642171 is a wasteful number, since it uses less digits than its factorization.

3198642171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066214060.

The product of its digits is 72576, while the sum is 42.

The square root of 3198642171 is about 56556.5395953465. The cubic root of 3198642171 is about 1473.4041414354.

The spelling of 3198642171 in words is "three billion, one hundred ninety-eight million, six hundred forty-two thousand, one hundred seventy-one".