497583161 has 4 divisors (see below), whose sum is σ = 505740324. Its totient is φ = 489426000.

The previous prime is 497583137. The next prime is 497583181. The reversal of 497583161 is 161385794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264257536 + 233325625 = 16256^2 + 15275^2 .

It is a cyclic number.

It is not a de Polignac number, because 497583161 - 2¹⁸ = 497321017 is a prime.

It is a super-2 number, since 2×497583161² = 495178004221503842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497583181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4078490 + ... + 4078611.

It is an arithmetic number, because the mean of its divisors is an integer number (126435081).

Almost surely, 2^497583161 is an apocalyptic number.

It is an amenable number.

497583161 is a deficient number, since it is larger than the sum of its proper divisors (8157163).

497583161 is an equidigital number, since it uses as much as digits as its factorization.

497583161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8157162.

The product of its digits is 181440, while the sum is 44.

The square root of 497583161 is about 22306.5721481361. The cubic root of 497583161 is about 792.4196290237.

The spelling of 497583161 in words is "four hundred ninety-seven million, five hundred eighty-three thousand, one hundred sixty-one".