126664801 has 8 divisors (see below), whose sum is σ = 130233600. Its totient is φ = 123103728.

The previous prime is 126664793. The next prime is 126664843. The reversal of 126664801 is 108466621.

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

It is a cyclic number.

It is not a de Polignac number, because 126664801 - 2³ = 126664793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126664861) 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 in 7 ways as a sum of consecutive naturals, for example, 51600 + ... + 53998.

It is an arithmetic number, because the mean of its divisors is an integer number (16279200).

Almost surely, 2^126664801 is an apocalyptic number.

It is an amenable number.

126664801 is a deficient number, since it is larger than the sum of its proper divisors (3568799).

126664801 is a wasteful number, since it uses less digits than its factorization.

126664801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 126664801 is about 11254.5457927008. The cubic root of 126664801 is about 502.2099524957.

It can be divided in two parts, 12666480 and 1, that added together give a square (12666481 = 3559²).

The spelling of 126664801 in words is "one hundred twenty-six million, six hundred sixty-four thousand, eight hundred one".