242580313 has 4 divisors (see below), whose sum is σ = 248496948. Its totient is φ = 236663680.

The previous prime is 242580253. The next prime is 242580319. The reversal of 242580313 is 313085242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313085242 = 2 ⋅156542621.

It can be written as a sum of positive squares in 2 ways, for example, as 23155344 + 219424969 = 4812^2 + 14813^2 .

It is a cyclic number.

It is not a de Polignac number, because 242580313 - 2¹⁷ = 242449241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242580319) 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, 2958256 + ... + 2958337.

It is an arithmetic number, because the mean of its divisors is an integer number (62124237).

Almost surely, 2^242580313 is an apocalyptic number.

It is an amenable number.

242580313 is a deficient number, since it is larger than the sum of its proper divisors (5916635).

242580313 is an equidigital number, since it uses as much as digits as its factorization.

242580313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916634.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 242580313 is about 15574.9899839454. The cubic root of 242580313 is about 623.6656871620.

The spelling of 242580313 in words is "two hundred forty-two million, five hundred eighty thousand, three hundred thirteen".