126463949 has 2 divisors, whose sum is σ = 126463950. Its totient is φ = 126463948.

The previous prime is 126463921. The next prime is 126463951. The reversal of 126463949 is 949364621.

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., 126450025 + 13924 = 11245^2 + 118^2 .

It is a cyclic number.

It is not a de Polignac number, because 126463949 - 2¹⁶ = 126398413 is a prime.

Together with 126463951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126463979) 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, 63231974 + 63231975.

It is an arithmetic number, because the mean of its divisors is an integer number (63231975).

Almost surely, 2^126463949 is an apocalyptic number.

It is an amenable number.

126463949 is a deficient number, since it is larger than the sum of its proper divisors (1).

126463949 is an equidigital number, since it uses as much as digits as its factorization.

126463949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 126463949 is about 11245.6191025661. The cubic root of 126463949 is about 501.9443611187.

The spelling of 126463949 in words is "one hundred twenty-six million, four hundred sixty-three thousand, nine hundred forty-nine".