242918713 has 4 divisors (see below), whose sum is σ = 243864180. Its totient is φ = 241973248.

The previous prime is 242918693. The next prime is 242918717. The reversal of 242918713 is 317819242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222964624 + 19954089 = 14932^2 + 4467^2 .

It is a cyclic number.

It is not a de Polignac number, because 242918713 - 2¹⁷ = 242787641 is a prime.

It is a super-2 number, since 2×242918713² = 118019002251152738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242918717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472348 + ... + 472861.

It is an arithmetic number, because the mean of its divisors is an integer number (60966045).

Almost surely, 2^242918713 is an apocalyptic number.

It is an amenable number.

242918713 is a deficient number, since it is larger than the sum of its proper divisors (945467).

242918713 is an equidigital number, since it uses as much as digits as its factorization.

242918713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945466.

The product of its digits is 24192, while the sum is 37.

The square root of 242918713 is about 15585.8497682994. The cubic root of 242918713 is about 623.9555573555.

The spelling of 242918713 in words is "two hundred forty-two million, nine hundred eighteen thousand, seven hundred thirteen".