242605245 has 16 divisors (see below), whose sum is σ = 392172480. Its totient is φ = 128054784.

The previous prime is 242605201. The next prime is 242605261. The reversal of 242605245 is 542506242.

It is a happy number.

It is not a de Polignac number, because 242605245 - 2¹¹ = 242603197 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 81915 + ... + 84824.

It is an arithmetic number, because the mean of its divisors is an integer number (24510780).

Almost surely, 2^242605245 is an apocalyptic number.

It is an amenable number.

242605245 is a deficient number, since it is larger than the sum of its proper divisors (149567235).

242605245 is a wasteful number, since it uses less digits than its factorization.

242605245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166844.

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 242605245 is about 15575.7903491284. The cubic root of 242605245 is about 623.6870528697.

The spelling of 242605245 in words is "two hundred forty-two million, six hundred five thousand, two hundred forty-five".