240101 has 2 divisors, whose sum is σ = 240102. Its totient is φ = 240100.

The previous prime is 240089. The next prime is 240109. The reversal of 240101 is 101042.

It is a Cunningham number, because it is equal to 490²+1.

It is an a-pointer prime, because the next prime (240109) can be obtained adding 240101 to its sum of digits (8).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 1 = 490^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240101 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

240101 is a modest number, since divided by 101 gives 24 as remainder.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120050 + 120051.

It is an arithmetic number, because the mean of its divisors is an integer number (120051).

2²⁴⁰¹⁰¹ is an apocalyptic number.

It is an amenable number.

240101 is a deficient number, since it is larger than the sum of its proper divisors (1).

240101 is an equidigital number, since it uses as much as digits as its factorization.

240101 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 240101 is about 490.0010204071. The cubic root of 240101 is about 62.1533664099.

Adding to 240101 its reverse (101042), we get a palindrome (341143).

The spelling of 240101 in words is "two hundred forty thousand, one hundred one", and thus it is an iban number.