242564745 has 16 divisors (see below), whose sum is σ = 389511360. Its totient is φ = 128898624.

The previous prime is 242564743. The next prime is 242564747. The reversal of 242564745 is 547465242.

It is an interprime number because it is at equal distance from previous prime (242564743) and next prime (242564747).

It is not a de Polignac number, because 242564745 - 2¹ = 242564743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242564743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25035 + ... + 33344.

It is an arithmetic number, because the mean of its divisors is an integer number (24344460).

Almost surely, 2^242564745 is an apocalyptic number.

It is an amenable number.

242564745 is a deficient number, since it is larger than the sum of its proper divisors (146946615).

242564745 is a wasteful number, since it uses less digits than its factorization.

242564745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58664.

The product of its digits is 268800, while the sum is 39.

The square root of 242564745 is about 15574.4902003244. The cubic root of 242564745 is about 623.6523452781.

The spelling of 242564745 in words is "two hundred forty-two million, five hundred sixty-four thousand, seven hundred forty-five".