522747121 has 8 divisors (see below), whose sum is σ = 563509800. Its totient is φ = 482063232.

The previous prime is 522747103. The next prime is 522747131. The reversal of 522747121 is 121747225.

It can be written as a sum of positive squares in 4 ways, for example, as 132250000 + 390497121 = 11500^2 + 19761^2 .

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 522747121 - 2⁷ = 522746993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522747131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5530 + ... + 32803.

It is an arithmetic number, because the mean of its divisors is an integer number (70438725).

Almost surely, 2^522747121 is an apocalyptic number.

It is an amenable number.

522747121 is a deficient number, since it is larger than the sum of its proper divisors (40762679).

522747121 is a wasteful number, since it uses less digits than its factorization.

522747121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39395.

The product of its digits is 7840, while the sum is 31.

The square root of 522747121 is about 22863.6637702709. The cubic root of 522747121 is about 805.5587448389.

It can be divided in two parts, 52274 and 7121, that added together give a palindrome (59395).

The spelling of 522747121 in words is "five hundred twenty-two million, seven hundred forty-seven thousand, one hundred twenty-one".