52172123 has 2 divisors, whose sum is σ = 52172124. Its totient is φ = 52172122.

The previous prime is 52172117. The next prime is 52172137. The reversal of 52172123 is 32127125.

It is a happy number.

52172123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52172123 - 2¹² = 52168027 is a prime.

It is not a weakly prime, because it can be changed into another prime (52171123) 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 as a sum of consecutive naturals, namely, 26086061 + 26086062.

It is an arithmetic number, because the mean of its divisors is an integer number (26086062).

Almost surely, 2^52172123 is an apocalyptic number.

52172123 is a deficient number, since it is larger than the sum of its proper divisors (1).

52172123 is an equidigital number, since it uses as much as digits as its factorization.

52172123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 52172123 is about 7223.0272739344. The cubic root of 52172123 is about 373.6624897000.

Adding to 52172123 its reverse (32127125), we get a palindrome (84299248).

The spelling of 52172123 in words is "fifty-two million, one hundred seventy-two thousand, one hundred twenty-three".