240115 has 4 divisors (see below), whose sum is σ = 288144. Its totient is φ = 192088.

The previous prime is 240113. The next prime is 240131. The reversal of 240115 is 511042.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 240115 - 2¹ = 240113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240095 and 240104.

It is not an unprimeable number, because it can be changed into a prime (240113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24007 + ... + 24016.

It is an arithmetic number, because the mean of its divisors is an integer number (72036).

2²⁴⁰¹¹⁵ is an apocalyptic number.

240115 is a deficient number, since it is larger than the sum of its proper divisors (48029).

240115 is an equidigital number, since it uses as much as digits as its factorization.

240115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48028.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 240115 is about 490.0153058834. The cubic root of 240115 is about 62.1545744157.

Adding to 240115 its reverse (511042), we get a palindrome (751157).

The spelling of 240115 in words is "two hundred forty thousand, one hundred fifteen".