242917253 has 8 divisors (see below), whose sum is σ = 251551200. Its totient is φ = 234300528.

The previous prime is 242917231. The next prime is 242917273. The reversal of 242917253 is 352719242.

It is a happy number.

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 242917253 - 2¹⁰ = 242916229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242917273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28838 + ... + 36296.

It is an arithmetic number, because the mean of its divisors is an integer number (31443900).

Almost surely, 2^242917253 is an apocalyptic number.

It is an amenable number.

242917253 is a deficient number, since it is larger than the sum of its proper divisors (8633947).

242917253 is a wasteful number, since it uses less digits than its factorization.

242917253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8611.

The product of its digits is 30240, while the sum is 35.

The square root of 242917253 is about 15585.8029308727. The cubic root of 242917253 is about 623.9543073119.

The spelling of 242917253 in words is "two hundred forty-two million, nine hundred seventeen thousand, two hundred fifty-three".