126440601 has 16 divisors (see below), whose sum is σ = 192845184. Its totient is φ = 72186624.

The previous prime is 126440579. The next prime is 126440603. The reversal of 126440601 is 106044621.

It is not a de Polignac number, because 126440601 - 2⁵ = 126440569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126440603) 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, 30675 + ... + 34551.

It is an arithmetic number, because the mean of its divisors is an integer number (12052824).

Almost surely, 2^126440601 is an apocalyptic number.

It is an amenable number.

126440601 is a deficient number, since it is larger than the sum of its proper divisors (66404583).

126440601 is a wasteful number, since it uses less digits than its factorization.

126440601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5440.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 126440601 is about 11244.5809615121. The cubic root of 126440601 is about 501.9134692629.

The spelling of 126440601 in words is "one hundred twenty-six million, four hundred forty thousand, six hundred one".