3172857147 has 6 divisors (see below), whose sum is σ = 4583015892. Its totient is φ = 2115238092.

The previous prime is 3172857133. The next prime is 3172857151. The reversal of 3172857147 is 7417582713.

3172857147 is a `hidden beast` number, since 3 + 1 + 72 + 8 + 571 + 4 + 7 = 666.

It is not a de Polignac number, because 3172857147 - 2⁴ = 3172857131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3172856147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 176269833 + ... + 176269850.

It is an arithmetic number, because the mean of its divisors is an integer number (763835982).

Almost surely, 2^3172857147 is an apocalyptic number.

3172857147 is a deficient number, since it is larger than the sum of its proper divisors (1410158745).

3172857147 is a wasteful number, since it uses less digits than its factorization.

3172857147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352539689 (or 352539686 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 3172857147 is about 56328.1203929263. The cubic root of 3172857147 is about 1469.4342998917.

The spelling of 3172857147 in words is "three billion, one hundred seventy-two million, eight hundred fifty-seven thousand, one hundred forty-seven".