240777601 has 2 divisors, whose sum is σ = 240777602. Its totient is φ = 240777600.

The previous prime is 240777599. The next prime is 240777617. The reversal of 240777601 is 106777042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190026225 + 50751376 = 13785^2 + 7124^2 .

It is a cyclic number.

It is not a de Polignac number, because 240777601 - 2¹ = 240777599 is a prime.

Together with 240777599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (240777631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120388800 + 120388801.

It is an arithmetic number, because the mean of its divisors is an integer number (120388801).

Almost surely, 2^240777601 is an apocalyptic number.

It is an amenable number.

240777601 is a deficient number, since it is larger than the sum of its proper divisors (1).

240777601 is an equidigital number, since it uses as much as digits as its factorization.

240777601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 240777601 is about 15517.0100534865. The cubic root of 240777601 is about 622.1169407200.

It can be divided in two parts, 2407 and 77601, that added together give a palindrome (80008).

The spelling of 240777601 in words is "two hundred forty million, seven hundred seventy-seven thousand, six hundred one".