242979121 has 8 divisors (see below), whose sum is σ = 302935104. Its totient is φ = 189334320.

The previous prime is 242979103. The next prime is 242979151. The reversal of 242979121 is 121979242.

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

It is not a de Polignac number, because 242979121 - 2¹⁷ = 242848049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242979151) 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, 1577710 + ... + 1577863.

It is an arithmetic number, because the mean of its divisors is an integer number (37866888).

Almost surely, 2^242979121 is an apocalyptic number.

It is an amenable number.

242979121 is a deficient number, since it is larger than the sum of its proper divisors (59955983).

242979121 is a wasteful number, since it uses less digits than its factorization.

242979121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155591.

The product of its digits is 18144, while the sum is 37.

The square root of 242979121 is about 15587.7875594967. The cubic root of 242979121 is about 624.0072739468.

The spelling of 242979121 in words is "two hundred forty-two million, nine hundred seventy-nine thousand, one hundred twenty-one".