242537261 has 8 divisors (see below), whose sum is σ = 255469920. Its totient is φ = 229621392.

The previous prime is 242537233. The next prime is 242537279. The reversal of 242537261 is 162735242.

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 242537261 - 2¹⁰ = 242536237 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 (242537761) 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, 34871 + ... + 41243.

It is an arithmetic number, because the mean of its divisors is an integer number (31933740).

Almost surely, 2^242537261 is an apocalyptic number.

It is an amenable number.

242537261 is a deficient number, since it is larger than the sum of its proper divisors (12932659).

242537261 is a wasteful number, since it uses less digits than its factorization.

242537261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395.

The product of its digits is 20160, while the sum is 32.

The square root of 242537261 is about 15573.6078350522. The cubic root of 242537261 is about 623.6287899060.

The spelling of 242537261 in words is "two hundred forty-two million, five hundred thirty-seven thousand, two hundred sixty-one".