126419849 has 2 divisors, whose sum is σ = 126419850. Its totient is φ = 126419848.

The previous prime is 126419833. The next prime is 126419879. The reversal of 126419849 is 948914621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79085449 + 47334400 = 8893^2 + 6880^2 .

It is a cyclic number.

It is not a de Polignac number, because 126419849 - 2⁴ = 126419833 is a prime.

It is not a weakly prime, because it can be changed into another prime (126419819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63209924 + 63209925.

It is an arithmetic number, because the mean of its divisors is an integer number (63209925).

Almost surely, 2^126419849 is an apocalyptic number.

It is an amenable number.

126419849 is a deficient number, since it is larger than the sum of its proper divisors (1).

126419849 is an equidigital number, since it uses as much as digits as its factorization.

126419849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 44.

The square root of 126419849 is about 11243.6581680519. The cubic root of 126419849 is about 501.8860089954.

The spelling of 126419849 in words is "one hundred twenty-six million, four hundred nineteen thousand, eight hundred forty-nine".