572800121 has 4 divisors (see below), whose sum is σ = 580646772. Its totient is φ = 564953472.

The previous prime is 572800117. The next prime is 572800133. The reversal of 572800121 is 121008275.

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 354794896 + 218005225 = 18836^2 + 14765^2 .

It is a cyclic number.

It is not a de Polignac number, because 572800121 - 2² = 572800117 is a prime.

It is a super-2 number, since 2×572800121² = 656199957235229282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (572800171) 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, 3923216 + ... + 3923361.

It is an arithmetic number, because the mean of its divisors is an integer number (145161693).

Almost surely, 2^572800121 is an apocalyptic number.

It is an amenable number.

572800121 is a deficient number, since it is larger than the sum of its proper divisors (7846651).

572800121 is an equidigital number, since it uses as much as digits as its factorization.

572800121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846650.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 572800121 is about 23933.2430105074. The cubic root of 572800121 is about 830.4899226893.

Adding to 572800121 its reverse (121008275), we get a palindrome (693808396).

The spelling of 572800121 in words is "five hundred seventy-two million, eight hundred thousand, one hundred twenty-one".