524012121 has 6 divisors (see below), whose sum is σ = 756906410. Its totient is φ = 349341408.

The previous prime is 524012119. The next prime is 524012141. The reversal of 524012121 is 121210425.

524012121 is a `hidden beast` number, since 52 + 401 + 212 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 523265625 + 746496 = 22875^2 + 864^2 .

It is not a de Polignac number, because 524012121 - 2¹ = 524012119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 524012094 and 524012103.

It is not an unprimeable number, because it can be changed into a prime (524012101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29111776 + ... + 29111793.

Almost surely, 2^524012121 is an apocalyptic number.

It is an amenable number.

524012121 is a deficient number, since it is larger than the sum of its proper divisors (232894289).

524012121 is a wasteful number, since it uses less digits than its factorization.

524012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58223575 (or 58223572 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 524012121 is about 22891.3110371599. The cubic root of 524012121 is about 806.2080141107.

Adding to 524012121 its reverse (121210425), we get a palindrome (645222546).

The spelling of 524012121 in words is "five hundred twenty-four million, twelve thousand, one hundred twenty-one".