242713505 has 16 divisors (see below), whose sum is σ = 324622080. Its totient is φ = 173129472.

The previous prime is 242713501. The next prime is 242713531. The reversal of 242713505 is 505317242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 242713505 - 2² = 242713501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242713501) 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, 73529 + ... + 76758.

It is an arithmetic number, because the mean of its divisors is an integer number (20288880).

Almost surely, 2^242713505 is an apocalyptic number.

It is an amenable number.

242713505 is a deficient number, since it is larger than the sum of its proper divisors (81908575).

242713505 is a wasteful number, since it uses less digits than its factorization.

242713505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150328.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 242713505 is about 15579.2652265760. The cubic root of 242713505 is about 623.7798103029.

The spelling of 242713505 in words is "two hundred forty-two million, seven hundred thirteen thousand, five hundred five".