242537263 has 4 divisors (see below), whose sum is σ = 248452848. Its totient is φ = 236621680.

The previous prime is 242537233. The next prime is 242537279. The reversal of 242537263 is 362735242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 362735242 = 2 ⋅181367621.

It is a cyclic number.

It is not a de Polignac number, because 242537263 - 2⁹ = 242536751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242537203) 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 3 ways as a sum of consecutive naturals, for example, 2957731 + ... + 2957812.

It is an arithmetic number, because the mean of its divisors is an integer number (62113212).

Almost surely, 2^242537263 is an apocalyptic number.

242537263 is a deficient number, since it is larger than the sum of its proper divisors (5915585).

242537263 is an equidigital number, since it uses as much as digits as its factorization.

242537263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915584.

The product of its digits is 60480, while the sum is 34.

The square root of 242537263 is about 15573.6078992634. The cubic root of 242537263 is about 623.6287916202.

The spelling of 242537263 in words is "two hundred forty-two million, five hundred thirty-seven thousand, two hundred sixty-three".