242643141 has 32 divisors (see below), whose sum is σ = 388080000. Its totient is φ = 148950144.

The previous prime is 242643131. The next prime is 242643143. The reversal of 242643141 is 141346242.

It is a happy number.

242643141 is a `hidden beast` number, since 2 + 4 + 2 + 643 + 14 + 1 = 666.

It is not a de Polignac number, because 242643141 - 2⁷ = 242643013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242643143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230785 + ... + 231833.

It is an arithmetic number, because the mean of its divisors is an integer number (12127500).

Almost surely, 2^242643141 is an apocalyptic number.

It is an amenable number.

242643141 is a deficient number, since it is larger than the sum of its proper divisors (145436859).

242643141 is a wasteful number, since it uses less digits than its factorization.

242643141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730 (or 1724 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 242643141 is about 15577.0068049032. The cubic root of 242643141 is about 623.7195253939.

Adding to 242643141 its reverse (141346242), we get a palindrome (383989383).

The spelling of 242643141 in words is "two hundred forty-two million, six hundred forty-three thousand, one hundred forty-one".