252445133 has 2 divisors, whose sum is σ = 252445134. Its totient is φ = 252445132.

The previous prime is 252445099. The next prime is 252445181. The reversal of 252445133 is 331544252.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229280164 + 23164969 = 15142^2 + 4813^2 .

It is a cyclic number.

It is not a de Polignac number, because 252445133 - 2¹² = 252441037 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 252445096 and 252445105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252465133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126222566 + 126222567.

It is an arithmetic number, because the mean of its divisors is an integer number (126222567).

Almost surely, 2^252445133 is an apocalyptic number.

It is an amenable number.

252445133 is a deficient number, since it is larger than the sum of its proper divisors (1).

252445133 is an equidigital number, since it uses as much as digits as its factorization.

252445133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

The square root of 252445133 is about 15888.5220520979. The cubic root of 252445133 is about 632.0076484213.

Adding to 252445133 its reverse (331544252), we get a palindrome (583989385).

The spelling of 252445133 in words is "two hundred fifty-two million, four hundred forty-five thousand, one hundred thirty-three".