242161156 has 24 divisors (see below), whose sum is σ = 447735680. Its totient is φ = 114283872.

The previous prime is 242161133. The next prime is 242161159. The reversal of 242161156 is 651161242.

It is not an unprimeable number, because it can be changed into a prime (242161159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15301 + ... + 26803.

Almost surely, 2^242161156 is an apocalyptic number.

It is an amenable number.

242161156 is a deficient number, since it is larger than the sum of its proper divisors (205574524).

242161156 is a wasteful number, since it uses less digits than its factorization.

242161156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11803 (or 11801 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 242161156 is about 15561.5280740678. The cubic root of 242161156 is about 623.3062672975.

The spelling of 242161156 in words is "two hundred forty-two million, one hundred sixty-one thousand, one hundred fifty-six".