126031001 has 4 divisors (see below), whose sum is σ = 126521652. Its totient is φ = 125540352.

The previous prime is 126030977. The next prime is 126031049. The reversal of 126031001 is 100130621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111408025 + 14622976 = 10555^2 + 3824^2 .

It is a cyclic number.

It is not a de Polignac number, because 126031001 - 2¹⁰ = 126029977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126031201) 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, 244940 + ... + 245453.

It is an arithmetic number, because the mean of its divisors is an integer number (31630413).

Almost surely, 2^126031001 is an apocalyptic number.

It is an amenable number.

126031001 is a deficient number, since it is larger than the sum of its proper divisors (490651).

126031001 is an equidigital number, since it uses as much as digits as its factorization.

126031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490650.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 126031001 is about 11226.3529696870. The cubic root of 126031001 is about 501.3709057993.

Adding to 126031001 its reverse (100130621), we get a palindrome (226161622).

The spelling of 126031001 in words is "one hundred twenty-six million, thirty-one thousand, one".