126332191 has 2 divisors, whose sum is σ = 126332192. Its totient is φ = 126332190.

The previous prime is 126332179. The next prime is 126332279. The reversal of 126332191 is 191233621.

It is a weak prime.

It is an emirp because it is prime and its reverse (191233621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126332191 - 2¹³ = 126323999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126332131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63166095 + 63166096.

It is an arithmetic number, because the mean of its divisors is an integer number (63166096).

Almost surely, 2^126332191 is an apocalyptic number.

126332191 is a deficient number, since it is larger than the sum of its proper divisors (1).

126332191 is an equidigital number, since it uses as much as digits as its factorization.

126332191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 126332191 is about 11239.7593835455. The cubic root of 126332191 is about 501.7699816035.

The spelling of 126332191 in words is "one hundred twenty-six million, three hundred thirty-two thousand, one hundred ninety-one".