126156193 has 2 divisors, whose sum is σ = 126156194. Its totient is φ = 126156192.

The previous prime is 126156091. The next prime is 126156203. The reversal of 126156193 is 391651621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126067984 + 88209 = 11228^2 + 297^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126156193 is a prime.

It is not a weakly prime, because it can be changed into another prime (126156493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63078096 + 63078097.

It is an arithmetic number, because the mean of its divisors is an integer number (63078097).

Almost surely, 2^126156193 is an apocalyptic number.

It is an amenable number.

126156193 is a deficient number, since it is larger than the sum of its proper divisors (1).

126156193 is an equidigital number, since it uses as much as digits as its factorization.

126156193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 34.

The square root of 126156193 is about 11231.9273947084. The cubic root of 126156193 is about 501.5368619375.

The spelling of 126156193 in words is "one hundred twenty-six million, one hundred fifty-six thousand, one hundred ninety-three".