126504253 has 2 divisors, whose sum is σ = 126504254. Its totient is φ = 126504252.

The previous prime is 126504227. The next prime is 126504277. The reversal of 126504253 is 352405621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72965764 + 53538489 = 8542^2 + 7317^2 .

It is an emirp because it is prime and its reverse (352405621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126504253 - 2¹³ = 126496061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126504353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63252126 + 63252127.

It is an arithmetic number, because the mean of its divisors is an integer number (63252127).

Almost surely, 2^126504253 is an apocalyptic number.

It is an amenable number.

126504253 is a deficient number, since it is larger than the sum of its proper divisors (1).

126504253 is an equidigital number, since it uses as much as digits as its factorization.

126504253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 126504253 is about 11247.4109465245. The cubic root of 126504253 is about 501.9976785975.

Adding to 126504253 its reverse (352405621), we get a palindrome (478909874).

The spelling of 126504253 in words is "one hundred twenty-six million, five hundred four thousand, two hundred fifty-three".