5171842 has 16 divisors (see below), whose sum is σ = 8846712. Its totient is φ = 2246400.

The previous prime is 5171839. The next prime is 5171843. The reversal of 5171842 is 2481715.

It can be written as a sum of positive squares in 4 ways, for example, as 4748041 + 423801 = 2179^2 + 651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 5171842.

It is not an unprimeable number, because it can be changed into a prime (5171843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409 + ... + 6292.

Almost surely, 2^5171842 is an apocalyptic number.

5171842 is a deficient number, since it is larger than the sum of its proper divisors (3674870).

5171842 is a wasteful number, since it uses less digits than its factorization.

5171842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11733.

The product of its digits is 2240, while the sum is 28.

The square root of 5171842 is about 2274.1684194448. The cubic root of 5171842 is about 172.9345426012.

The spelling of 5171842 in words is "five million, one hundred seventy-one thousand, eight hundred forty-two".