572121 has 12 divisors (see below), whose sum is σ = 901680. Its totient is φ = 346680.

The previous prime is 572107. The next prime is 572137. The reversal of 572121 is 121275.

It is not a de Polignac number, because 572121 - 2¹³ = 563929 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 572094 and 572103.

It is not an unprimeable number, because it can be changed into a prime (572161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2791 + ... + 2988.

It is an arithmetic number, because the mean of its divisors is an integer number (75140).

2⁵⁷²¹²¹ is an apocalyptic number.

It is an amenable number.

572121 is a deficient number, since it is larger than the sum of its proper divisors (329559).

572121 is a wasteful number, since it uses less digits than its factorization.

572121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796 (or 5793 counting only the distinct ones).

The product of its digits is 140, while the sum is 18.

The square root of 572121 is about 756.3868058077. The cubic root of 572121 is about 83.0161578839.

Adding to 572121 its reverse (121275), we get a palindrome (693396).

The spelling of 572121 in words is "five hundred seventy-two thousand, one hundred twenty-one".