3201171605 has 16 divisors (see below), whose sum is σ = 3856305024. Its totient is φ = 2551028160.

The previous prime is 3201171599. The next prime is 3201171619. The reversal of 3201171605 is 5061711023.

It is a de Polignac number, because none of the positive numbers 2^k-3201171605 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846319 + ... + 1848051.

It is an arithmetic number, because the mean of its divisors is an integer number (241019064).

Almost surely, 2^3201171605 is an apocalyptic number.

It is an amenable number.

3201171605 is a deficient number, since it is larger than the sum of its proper divisors (655133419).

3201171605 is a wasteful number, since it uses less digits than its factorization.

3201171605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 3201171605 is about 56578.8971702348. The cubic root of 3201171605 is about 1473.7924204174.

Adding to 3201171605 its reverse (5061711023), we get a palindrome (8262882628).

The spelling of 3201171605 in words is "three billion, two hundred one million, one hundred seventy-one thousand, six hundred five".