126481809 has 8 divisors (see below), whose sum is σ = 169399552. Its totient is φ = 83942640.

The previous prime is 126481793. The next prime is 126481913. The reversal of 126481809 is 908184621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 126481809 - 2⁴ = 126481793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126481009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93862 + ... + 95199.

It is an arithmetic number, because the mean of its divisors is an integer number (21174944).

Almost surely, 2^126481809 is an apocalyptic number.

It is an amenable number.

126481809 is a deficient number, since it is larger than the sum of its proper divisors (42917743).

126481809 is a wasteful number, since it uses less digits than its factorization.

126481809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189287.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 126481809 is about 11246.4131615373. The cubic root of 126481809 is about 501.9679892076.

The spelling of 126481809 in words is "one hundred twenty-six million, four hundred eighty-one thousand, eight hundred nine".