240541 has 6 divisors (see below), whose sum is σ = 279870. Its totient is φ = 206136.

The previous prime is 240517. The next prime is 240551. The reversal of 240541 is 145042.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 441 = 490^2 + 21^2 .

It is not a de Polignac number, because 240541 - 2⁵ = 240509 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240551) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2406 + ... + 2503.

It is an arithmetic number, because the mean of its divisors is an integer number (46645).

2²⁴⁰⁵⁴¹ is an apocalyptic number.

It is an amenable number.

240541 is a deficient number, since it is larger than the sum of its proper divisors (39329).

240541 is an equidigital number, since it uses as much as digits as its factorization.

240541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923 (or 4916 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 240541 is about 490.4497935569. The cubic root of 240541 is about 62.1913098766.

Adding to 240541 its reverse (145042), we get a palindrome (385583).

The spelling of 240541 in words is "two hundred forty thousand, five hundred forty-one".