242144231 has 12 divisors (see below), whose sum is σ = 285886008. Its totient is φ = 204451632.

The previous prime is 242144183. The next prime is 242144239. The reversal of 242144231 is 132441242.

It is a de Polignac number, because none of the positive numbers 2^k-242144231 is a prime.

It is a super-2 number, since 2×242144231² = 117267657213162722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242144197 and 242144206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242144239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33596 + ... + 40161.

It is an arithmetic number, because the mean of its divisors is an integer number (23823834).

Almost surely, 2^242144231 is an apocalyptic number.

242144231 is a deficient number, since it is larger than the sum of its proper divisors (43741777).

242144231 is an equidigital number, since it uses as much as digits as its factorization.

242144231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73838 (or 73831 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 242144231 is about 15560.9842555026. The cubic root of 242144231 is about 623.2917456947.

Adding to 242144231 its reverse (132441242), we get a palindrome (374585473).

The spelling of 242144231 in words is "two hundred forty-two million, one hundred forty-four thousand, two hundred thirty-one".