242115 has 8 divisors (see below), whose sum is σ = 387408. Its totient is φ = 129120.

The previous prime is 242101. The next prime is 242119. The reversal of 242115 is 511242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242115 - 2⁵ = 242083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 16141 = 242115 / (2 + 4 + 2 + 1 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 242094 and 242103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8056 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (48426).

2²⁴²¹¹⁵ is an apocalyptic number.

242115 is a deficient number, since it is larger than the sum of its proper divisors (145293).

242115 is a wasteful number, since it uses less digits than its factorization.

242115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16149.

The product of its digits is 80, while the sum is 15.

The square root of 242115 is about 492.0518265386. The cubic root of 242115 is about 62.3266663985.

Adding to 242115 its reverse (511242), we get a palindrome (753357).

It can be divided in two parts, 2421 and 15, that multiplied together give a triangular number (36315 = T₂₆₉).

The spelling of 242115 in words is "two hundred forty-two thousand, one hundred fifteen".