242541 has 16 divisors (see below), whose sum is σ = 387520. Its totient is φ = 149040.

The previous prime is 242533. The next prime is 242551. The reversal of 242541 is 145242.

It is not a de Polignac number, because 242541 - 2³ = 242533 is a prime.

It is a super-2 number, since 2×242541² = 117652273362, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (24220).

2²⁴²⁵⁴¹ is an apocalyptic number.

It is an amenable number.

242541 is a deficient number, since it is larger than the sum of its proper divisors (144979).

242541 is a wasteful number, since it uses less digits than its factorization.

242541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 707 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 242541 is about 492.4845175231. The cubic root of 242541 is about 62.3631994549.

Adding to 242541 its reverse (145242), we get a palindrome (387783).

The spelling of 242541 in words is "two hundred forty-two thousand, five hundred forty-one".