242654 has 4 divisors (see below), whose sum is σ = 363984. Its totient is φ = 121326.

The previous prime is 242647. The next prime is 242659. The reversal of 242654 is 456242.

Added to its reverse (456242) it gives a square (698896 = 836²).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60662 + ... + 60665.

It is an arithmetic number, because the mean of its divisors is an integer number (90996).

2²⁴²⁶⁵⁴ is an apocalyptic number.

242654 is a deficient number, since it is larger than the sum of its proper divisors (121330).

242654 is a wasteful number, since it uses less digits than its factorization.

242654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121329.

The product of its digits is 1920, while the sum is 23.

The square root of 242654 is about 492.5992285824. The cubic root of 242654 is about 62.3728829688.

Adding to 242654 its reverse (456242), we get a palindrome (698896).

The spelling of 242654 in words is "two hundred forty-two thousand, six hundred fifty-four".