126449985 has 16 divisors (see below), whose sum is σ = 202527936. Its totient is φ = 67370688.

The previous prime is 126449957. The next prime is 126449987. The reversal of 126449985 is 589944621.

It is not a de Polignac number, because 126449985 - 2⁹ = 126449473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126449987) 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 in 15 ways as a sum of consecutive naturals, for example, 12982 + ... + 20528.

It is an arithmetic number, because the mean of its divisors is an integer number (12657996).

Almost surely, 2^126449985 is an apocalyptic number.

126449985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126449985 is a deficient number, since it is larger than the sum of its proper divisors (76077951).

126449985 is a wasteful number, since it uses less digits than its factorization.

126449985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8672.

The product of its digits is 622080, while the sum is 48.

The square root of 126449985 is about 11244.9982214316. The cubic root of 126449985 is about 501.9258857373.

The spelling of 126449985 in words is "one hundred twenty-six million, four hundred forty-nine thousand, nine hundred eighty-five".