126020001 has 8 divisors (see below), whose sum is σ = 168351264. Its totient is φ = 83851040.

The previous prime is 126019987. The next prime is 126020003. The reversal of 126020001 is 100020621.

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 126020001 - 2⁵ = 126019969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126020003) 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 7 ways as a sum of consecutive naturals, for example, 38751 + ... + 41876.

It is an arithmetic number, because the mean of its divisors is an integer number (21043908).

Almost surely, 2^126020001 is an apocalyptic number.

It is an amenable number.

126020001 is a deficient number, since it is larger than the sum of its proper divisors (42331263).

126020001 is an equidigital number, since it uses as much as digits as its factorization.

126020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81151.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 126020001 is about 11225.8630403190. The cubic root of 126020001 is about 501.3563188052.

Adding to 126020001 its reverse (100020621), we get a palindrome (226040622).

The spelling of 126020001 in words is "one hundred twenty-six million, twenty thousand, one".