501164605 has 8 divisors (see below), whose sum is σ = 606720312. Its totient is φ = 397383168.

The previous prime is 501164603. The next prime is 501164617. The reversal of 501164605 is 506461105.

It can be written as a sum of positive squares in 4 ways, for example, as 11737476 + 489427129 = 3426^2 + 22123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501164605 - 2¹ = 501164603 is a prime.

It is a super-2 number, since 2×501164605² = 502331922609612050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501164603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442944 + ... + 444073.

It is an arithmetic number, because the mean of its divisors is an integer number (75840039).

Almost surely, 2^501164605 is an apocalyptic number.

It is an amenable number.

501164605 is a deficient number, since it is larger than the sum of its proper divisors (105555707).

501164605 is a wasteful number, since it uses less digits than its factorization.

501164605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887135.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 501164605 is about 22386.7059881529. The cubic root of 501164605 is about 794.3162798919.

The spelling of 501164605 in words is "five hundred one million, one hundred sixty-four thousand, six hundred five".