242153454215 has 8 divisors (see below), whose sum is σ = 290707444800. Its totient is φ = 193640563552.

The previous prime is 242153454209. The next prime is 242153454223. The reversal of 242153454215 is 512454351242.

242153454215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 242153454215 - 2⁴ = 242153454199 is a prime.

It is a super-2 number, since 2×242153454215² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10262015 + ... + 10285584.

It is an arithmetic number, because the mean of its divisors is an integer number (36338430600).

Almost surely, 2^242153454215 is an apocalyptic number.

242153454215 is a deficient number, since it is larger than the sum of its proper divisors (48553990585).

242153454215 is a wasteful number, since it uses less digits than its factorization.

242153454215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20549961.

The product of its digits is 192000, while the sum is 38.

The spelling of 242153454215 in words is "two hundred forty-two billion, one hundred fifty-three million, four hundred fifty-four thousand, two hundred fifteen".