240540541 has 2 divisors, whose sum is σ = 240540542. Its totient is φ = 240540540.

The previous prime is 240540539. The next prime is 240540577. The reversal of 240540541 is 145045042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189475225 + 51065316 = 13765^2 + 7146^2 .

It is a cyclic number.

It is not a de Polignac number, because 240540541 - 2¹ = 240540539 is a prime.

Together with 240540539, 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 (240540941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120270270 + 120270271.

It is an arithmetic number, because the mean of its divisors is an integer number (120270271).

Almost surely, 2^240540541 is an apocalyptic number.

It is an amenable number.

240540541 is a deficient number, since it is larger than the sum of its proper divisors (1).

240540541 is an equidigital number, since it uses as much as digits as its factorization.

240540541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 240540541 is about 15509.3694584919. The cubic root of 240540541 is about 621.9127031878.

Adding to 240540541 its reverse (145045042), we get a palindrome (385585583).

It can be divided in two parts, 240540 and 541, that added together give a square (241081 = 491²).

The spelling of 240540541 in words is "two hundred forty million, five hundred forty thousand, five hundred forty-one".