501172 has 18 divisors (see below), whose sum is σ = 1020642. Its totient is φ = 214704.

The previous prime is 501157. The next prime is 501173. The reversal of 501172 is 271105.

It can be written as a sum of positive squares in only one way, i.e., 414736 + 86436 = 644^2 + 294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501173) 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 5 ways as a sum of consecutive naturals, for example, 1083 + ... + 1474.

2⁵⁰¹¹⁷² is an apocalyptic number.

It is an amenable number.

501172 is an abundant number, since it is smaller than the sum of its proper divisors (519470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

501172 is a wasteful number, since it uses less digits than its factorization.

501172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 501172 is about 707.9350252671. The cubic root of 501172 is about 79.4320186752.

Adding to 501172 its reverse (271105), we get a palindrome (772277).

The spelling of 501172 in words is "five hundred one thousand, one hundred seventy-two".