240553361 has 2 divisors, whose sum is σ = 240553362. Its totient is φ = 240553360.

The previous prime is 240553331. The next prime is 240553363. The reversal of 240553361 is 163355042.

240553361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229371025 + 11182336 = 15145^2 + 3344^2 .

It is a cyclic number.

It is not a de Polignac number, because 240553361 - 2²⁶ = 173444497 is a prime.

Together with 240553363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240553363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120276680 + 120276681.

It is an arithmetic number, because the mean of its divisors is an integer number (120276681).

Almost surely, 2^240553361 is an apocalyptic number.

It is an amenable number.

240553361 is a deficient number, since it is larger than the sum of its proper divisors (1).

240553361 is an equidigital number, since it uses as much as digits as its factorization.

240553361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 240553361 is about 15509.7827515410. The cubic root of 240553361 is about 621.9237516085.

The spelling of 240553361 in words is "two hundred forty million, five hundred fifty-three thousand, three hundred sixty-one".