242252543 has 12 divisors (see below), whose sum is σ = 262773360. Its totient is φ = 223232256.

The previous prime is 242252531. The next prime is 242252581. The reversal of 242252543 is 345252242.

It is not a de Polignac number, because 242252543 - 2²⁶ = 175143679 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 (242252243) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 156230 + ... + 157772.

It is an arithmetic number, because the mean of its divisors is an integer number (21897780).

Almost surely, 2^242252543 is an apocalyptic number.

242252543 is a deficient number, since it is larger than the sum of its proper divisors (20520817).

242252543 is a wasteful number, since it uses less digits than its factorization.

242252543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2485 counting only the distinct ones).

The product of its digits is 19200, while the sum is 29.

The square root of 242252543 is about 15564.4641089888. The cubic root of 242252543 is about 623.3846654007.

The spelling of 242252543 in words is "two hundred forty-two million, two hundred fifty-two thousand, five hundred forty-three".