245115132245321 has 8 divisors (see below), whose sum is σ = 264254286825480. Its totient is φ = 226016569723392.

The previous prime is 245115132245287. The next prime is 245115132245371. The reversal of 245115132245321 is 123542231511542.

It can be written as a sum of positive squares in 4 ways, for example, as 99975483721 + 245015156761600 = 316189^2 + 15652960^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245115132245321 - 2³⁸ = 244840254338377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245115132245371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10148002010 + ... + 10148026163.

It is an arithmetic number, because the mean of its divisors is an integer number (33031785853185).

Almost surely, 2^{245115132245321} is an apocalyptic number.

It is an amenable number.

245115132245321 is a deficient number, since it is larger than the sum of its proper divisors (19139154580159).

245115132245321 is a wasteful number, since it uses less digits than its factorization.

245115132245321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20296029115.

The product of its digits is 288000, while the sum is 41.

Adding to 245115132245321 its reverse (123542231511542), we get a palindrome (368657363756863).

The spelling of 245115132245321 in words is "two hundred forty-five trillion, one hundred fifteen billion, one hundred thirty-two million, two hundred forty-five thousand, three hundred twenty-one".