242147105 has 24 divisors (see below), whose sum is σ = 307698048. Its totient is φ = 182896736.

The previous prime is 242147093. The next prime is 242147111. The reversal of 242147105 is 501741242.

It is a de Polignac number, because none of the positive numbers 2^k-242147105 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218984 + ... + 220086.

It is an arithmetic number, because the mean of its divisors is an integer number (12820752).

Almost surely, 2^242147105 is an apocalyptic number.

It is an amenable number.

242147105 is a deficient number, since it is larger than the sum of its proper divisors (65550943).

242147105 is a wasteful number, since it uses less digits than its factorization.

242147105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 242147105 is about 15561.0766015723. The cubic root of 242147105 is about 623.2942116264.

Adding to 242147105 its reverse (501741242), we get a palindrome (743888347).

The spelling of 242147105 in words is "two hundred forty-two million, one hundred forty-seven thousand, one hundred five".