242263545 has 16 divisors (see below), whose sum is σ = 389249280. Its totient is φ = 128664704.

The previous prime is 242263493. The next prime is 242263561. The reversal of 242263545 is 545362242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242263545 - 2⁹ = 242263033 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30204 + ... + 37373.

It is an arithmetic number, because the mean of its divisors is an integer number (24328080).

Almost surely, 2^242263545 is an apocalyptic number.

It is an amenable number.

242263545 is a deficient number, since it is larger than the sum of its proper divisors (146985735).

242263545 is a wasteful number, since it uses less digits than its factorization.

242263545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67824.

The product of its digits is 57600, while the sum is 33.

The square root of 242263545 is about 15564.8175382816. The cubic root of 242263545 is about 623.3941023491.

The spelling of 242263545 in words is "two hundred forty-two million, two hundred sixty-three thousand, five hundred forty-five".