126143273 has 2 divisors, whose sum is σ = 126143274. Its totient is φ = 126143272.

The previous prime is 126143231. The next prime is 126143279. The reversal of 126143273 is 372341621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95981209 + 30162064 = 9797^2 + 5492^2 .

It is a cyclic number.

It is not a de Polignac number, because 126143273 - 2¹² = 126139177 is a prime.

It is not a weakly prime, because it can be changed into another prime (126143279) 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, 63071636 + 63071637.

It is an arithmetic number, because the mean of its divisors is an integer number (63071637).

Almost surely, 2^126143273 is an apocalyptic number.

It is an amenable number.

126143273 is a deficient number, since it is larger than the sum of its proper divisors (1).

126143273 is an equidigital number, since it uses as much as digits as its factorization.

126143273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 29.

The square root of 126143273 is about 11231.3522338141. The cubic root of 126143273 is about 501.5197401000.

Adding to 126143273 its reverse (372341621), we get a palindrome (498484894).

The spelling of 126143273 in words is "one hundred twenty-six million, one hundred forty-three thousand, two hundred seventy-three".