4001244001 has 2 divisors, whose sum is σ = 4001244002. Its totient is φ = 4001244000.

The previous prime is 4001243929. The next prime is 4001244011. The reversal of 4001244001 is 1004421004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3711733776 + 289510225 = 60924^2 + 17015^2 .

It is a cyclic number.

It is not a de Polignac number, because 4001244001 - 2⁹ = 4001243489 is a prime.

It is not a weakly prime, because it can be changed into another prime (4001244011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000622000 + 2000622001.

It is an arithmetic number, because the mean of its divisors is an integer number (2000622001).

Almost surely, 2^4001244001 is an apocalyptic number.

It is an amenable number.

4001244001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001244001 is an equidigital number, since it uses as much as digits as its factorization.

4001244001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 4001244001 is about 63255.3871302674. The cubic root of 4001244001 is about 1587.5655956197.

Adding to 4001244001 its reverse (1004421004), we get a palindrome (5005665005).

The spelling of 4001244001 in words is "four billion, one million, two hundred forty-four thousand, one".