242653520245 has 16 divisors (see below), whose sum is σ = 308489985648. Its totient is φ = 182598773760.

The previous prime is 242653520231. The next prime is 242653520261. The reversal of 242653520245 is 542025356242.

It can be written as a sum of positive squares in 8 ways, for example, as 12552849 + 242640967396 = 3543^2 + 492586^2 .

It is not a de Polignac number, because 242653520245 - 2¹¹ = 242653518197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242653520198 and 242653520207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671874 + ... + 967843.

It is an arithmetic number, because the mean of its divisors is an integer number (19280624103).

Almost surely, 2^242653520245 is an apocalyptic number.

It is an amenable number.

242653520245 is a deficient number, since it is larger than the sum of its proper divisors (65836465403).

242653520245 is a wasteful number, since it uses less digits than its factorization.

242653520245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641480.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 242653520245 its reverse (542025356242), we get a palindrome (784678876487).

The spelling of 242653520245 in words is "two hundred forty-two billion, six hundred fifty-three million, five hundred twenty thousand, two hundred forty-five".