242146231 has 8 divisors (see below), whose sum is σ = 254913120. Its totient is φ = 229565952.

The previous prime is 242146211. The next prime is 242146253. The reversal of 242146231 is 132641242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242146231 - 2⁵ = 242146199 is a prime.

It is a super-3 number, since 3×242146231³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242146196 and 242146205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242146211) 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, 43986 + ... + 49183.

It is an arithmetic number, because the mean of its divisors is an integer number (31864140).

Almost surely, 2^242146231 is an apocalyptic number.

242146231 is a deficient number, since it is larger than the sum of its proper divisors (12766889).

242146231 is a wasteful number, since it uses less digits than its factorization.

242146231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93305.

The product of its digits is 2304, while the sum is 25.

The square root of 242146231 is about 15561.0485186571. The cubic root of 242146231 is about 623.2934617244.

Adding to 242146231 its reverse (132641242), we get a palindrome (374787473).

The spelling of 242146231 in words is "two hundred forty-two million, one hundred forty-six thousand, two hundred thirty-one".