240241213 has 2 divisors, whose sum is σ = 240241214. Its totient is φ = 240241212.

The previous prime is 240241159. The next prime is 240241219. The reversal of 240241213 is 312142042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187635204 + 52606009 = 13698^2 + 7253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240241213 is a prime.

It is a super-2 number, since 2×240241213² = 115431680847422738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240241219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120120606 + 120120607.

It is an arithmetic number, because the mean of its divisors is an integer number (120120607).

Almost surely, 2^240241213 is an apocalyptic number.

It is an amenable number.

240241213 is a deficient number, since it is larger than the sum of its proper divisors (1).

240241213 is an equidigital number, since it uses as much as digits as its factorization.

240241213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 240241213 is about 15499.7165457953. The cubic root of 240241213 is about 621.6546272788.

Adding to 240241213 its reverse (312142042), we get a palindrome (552383255).

The spelling of 240241213 in words is "two hundred forty million, two hundred forty-one thousand, two hundred thirteen".