126501201 has 12 divisors (see below), whose sum is σ = 184499328. Its totient is φ = 83514744.

The previous prime is 126501181. The next prime is 126501209. The reversal of 126501201 is 102105621.

126501201 is a `hidden beast` number, since 1 + 2 + 650 + 12 + 0 + 1 = 666.

It is not a de Polignac number, because 126501201 - 2⁵ = 126501169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126501209) 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 11 ways as a sum of consecutive naturals, for example, 67305 + ... + 69158.

It is an arithmetic number, because the mean of its divisors is an integer number (15374944).

Almost surely, 2^126501201 is an apocalyptic number.

It is an amenable number.

126501201 is a deficient number, since it is larger than the sum of its proper divisors (57998127).

126501201 is a wasteful number, since it uses less digits than its factorization.

126501201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136572 (or 136569 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 126501201 is about 11247.2752700376. The cubic root of 126501201 is about 501.9936415548.

Adding to 126501201 its reverse (102105621), we get a palindrome (228606822).

The spelling of 126501201 in words is "one hundred twenty-six million, five hundred one thousand, two hundred one".