524016121 has 4 divisors (see below), whose sum is σ = 536797044. Its totient is φ = 511235200.

The previous prime is 524016091. The next prime is 524016127. The reversal of 524016121 is 121610425.

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 317231721 + 206784400 = 17811^2 + 14380^2 .

It is a cyclic number.

It is not a de Polignac number, because 524016121 - 2¹³ = 524007929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 524016092 and 524016101.

It is not an unprimeable number, because it can be changed into a prime (524016127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6390400 + ... + 6390481.

It is an arithmetic number, because the mean of its divisors is an integer number (134199261).

Almost surely, 2^524016121 is an apocalyptic number.

It is an amenable number.

524016121 is a deficient number, since it is larger than the sum of its proper divisors (12780923).

524016121 is a wasteful number, since it uses less digits than its factorization.

524016121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780922.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 524016121 is about 22891.3984063884. The cubic root of 524016121 is about 806.2100654779.

Adding to 524016121 its reverse (121610425), we get a palindrome (645626546).

The spelling of 524016121 in words is "five hundred twenty-four million, sixteen thousand, one hundred twenty-one".