242115147 has 12 divisors (see below), whose sum is σ = 351869544. Its totient is φ = 160418880.

The previous prime is 242115121. The next prime is 242115151. The reversal of 242115147 is 741511242.

It is a de Polignac number, because none of the positive numbers 2^k-242115147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242115147.

It is not an unprimeable number, because it can be changed into a prime (242115187) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81054 + ... + 83987.

It is an arithmetic number, because the mean of its divisors is an integer number (29322462).

Almost surely, 2^242115147 is an apocalyptic number.

242115147 is a deficient number, since it is larger than the sum of its proper divisors (109754397).

242115147 is a wasteful number, since it uses less digits than its factorization.

242115147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165210 (or 165207 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 242115147 is about 15560.0497107175. The cubic root of 242115147 is about 623.2667901233.

Adding to 242115147 its reverse (741511242), we get a palindrome (983626389).

The spelling of 242115147 in words is "two hundred forty-two million, one hundred fifteen thousand, one hundred forty-seven".