126000001 has 4 divisors (see below), whose sum is σ = 132631600. Its totient is φ = 119368404.

The previous prime is 125999959. The next prime is 126000013. The reversal of 126000001 is 100000621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126000001 - 2¹³ = 125991809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126000101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315771 + ... + 3315808.

It is an arithmetic number, because the mean of its divisors is an integer number (33157900).

Almost surely, 2^126000001 is an apocalyptic number.

It is an amenable number.

126000001 is a deficient number, since it is larger than the sum of its proper divisors (6631599).

126000001 is an equidigital number, since it uses as much as digits as its factorization.

126000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6631598.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 126000001 is about 11224.9722048654. The cubic root of 126000001 is about 501.3297948227.

Adding to 126000001 its reverse (100000621), we get a palindrome (226000622).

The spelling of 126000001 in words is "one hundred twenty-six million, one", and thus it is an aban number.