240541663 has 2 divisors, whose sum is σ = 240541664. Its totient is φ = 240541662.

The previous prime is 240541661. The next prime is 240541673. The reversal of 240541663 is 366145042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240541663 - 2¹ = 240541661 is a prime.

Together with 240541661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240541661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120270831 + 120270832.

It is an arithmetic number, because the mean of its divisors is an integer number (120270832).

Almost surely, 2^240541663 is an apocalyptic number.

240541663 is a deficient number, since it is larger than the sum of its proper divisors (1).

240541663 is an equidigital number, since it uses as much as digits as its factorization.

240541663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 240541663 is about 15509.4056301330. The cubic root of 240541663 is about 621.9136701558.

The spelling of 240541663 in words is "two hundred forty million, five hundred forty-one thousand, six hundred sixty-three".