126087193 has 2 divisors, whose sum is σ = 126087194. Its totient is φ = 126087192.

The previous prime is 126087187. The next prime is 126087217. The reversal of 126087193 is 391780621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125171344 + 915849 = 11188^2 + 957^2 .

It is an emirp because it is prime and its reverse (391780621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126087193 - 2¹³ = 126079001 is a prime.

It is not a weakly prime, because it can be changed into another prime (126087163) 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, 63043596 + 63043597.

It is an arithmetic number, because the mean of its divisors is an integer number (63043597).

Almost surely, 2^126087193 is an apocalyptic number.

It is an amenable number.

126087193 is a deficient number, since it is larger than the sum of its proper divisors (1).

126087193 is an equidigital number, since it uses as much as digits as its factorization.

126087193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 126087193 is about 11228.8553735454. The cubic root of 126087193 is about 501.4454082304.

The spelling of 126087193 in words is "one hundred twenty-six million, eighty-seven thousand, one hundred ninety-three".