240001001 has 2 divisors, whose sum is σ = 240001002. Its totient is φ = 240001000.

The previous prime is 240000991. The next prime is 240001031. The reversal of 240001001 is 100100042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221295376 + 18705625 = 14876^2 + 4325^2 .

It is a cyclic number.

It is not a de Polignac number, because 240001001 - 2¹⁴ = 239984617 is a prime.

240001001 is a modest number, since divided by 1001 gives 240 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 240001001.

It is not a weakly prime, because it can be changed into another prime (240001031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120000500 + 120000501.

It is an arithmetic number, because the mean of its divisors is an integer number (120000501).

Almost surely, 2^240001001 is an apocalyptic number.

It is an amenable number.

240001001 is a deficient number, since it is larger than the sum of its proper divisors (1).

240001001 is an equidigital number, since it uses as much as digits as its factorization.

240001001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 240001001 is about 15491.9656919321. The cubic root of 240001001 is about 621.4473651728.

Adding to 240001001 its reverse (100100042), we get a palindrome (340101043).

The spelling of 240001001 in words is "two hundred forty million, one thousand, one".