52126121 has 4 divisors (see below), whose sum is σ = 52144644. Its totient is φ = 52107600.

The previous prime is 52126117. The next prime is 52126133. The reversal of 52126121 is 12162125.

52126121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 25200400 + 26925721 = 5020^2 + 5189^2 .

It is a cyclic number.

It is not a de Polignac number, because 52126121 - 2² = 52126117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52126093 and 52126102.

It is not an unprimeable number, because it can be changed into a prime (52126721) 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, 4070 + ... + 10991.

It is an arithmetic number, because the mean of its divisors is an integer number (13036161).

Almost surely, 2^52126121 is an apocalyptic number.

It is an amenable number.

52126121 is a deficient number, since it is larger than the sum of its proper divisors (18523).

52126121 is a wasteful number, since it uses less digits than its factorization.

52126121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18522.

The product of its digits is 240, while the sum is 20.

The square root of 52126121 is about 7219.8421727902. The cubic root of 52126121 is about 373.5526336092.

Adding to 52126121 its reverse (12162125), we get a palindrome (64288246).

The spelling of 52126121 in words is "fifty-two million, one hundred twenty-six thousand, one hundred twenty-one".