242158158209 has 8 divisors (see below), whose sum is σ = 269156924352. Its totient is φ = 215990123440.

The previous prime is 242158158191. The next prime is 242158158239. The reversal of 242158158209 is 902851851242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242158158209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242158158239) 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, 207682229 + ... + 207683394.

It is an arithmetic number, because the mean of its divisors is an integer number (33644615544).

Almost surely, 2^242158158209 is an apocalyptic number.

It is an amenable number.

242158158209 is a deficient number, since it is larger than the sum of its proper divisors (26998766143).

242158158209 is a wasteful number, since it uses less digits than its factorization.

242158158209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415365687.

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 242158158209 in words is "two hundred forty-two billion, one hundred fifty-eight million, one hundred fifty-eight thousand, two hundred nine".