242544031 has 4 divisors (see below), whose sum is σ = 250368064. Its totient is φ = 234720000.

The previous prime is 242543999. The next prime is 242544041. The reversal of 242544031 is 130445242.

It is a happy number.

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 242544031 - 2⁵ = 242543999 is a prime.

It is a super-2 number, since 2×242544031² = 117655213947457922, 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 = 242543987 and 242544005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242544041) 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 3 ways as a sum of consecutive naturals, for example, 3911970 + ... + 3912031.

It is an arithmetic number, because the mean of its divisors is an integer number (62592016).

Almost surely, 2^242544031 is an apocalyptic number.

242544031 is a deficient number, since it is larger than the sum of its proper divisors (7824033).

242544031 is an equidigital number, since it uses as much as digits as its factorization.

242544031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7824032.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 242544031 is about 15573.8251884372. The cubic root of 242544031 is about 623.6345923514.

Adding to 242544031 its reverse (130445242), we get a palindrome (372989273).

The spelling of 242544031 in words is "two hundred forty-two million, five hundred forty-four thousand, thirty-one".