305630435620145 has 8 divisors (see below), whose sum is σ = 366830870335656. Its totient is φ = 244454783435136.

The previous prime is 305630435619997. The next prime is 305630435620157. The reversal of 305630435620145 is 541026534036503.

It can be written as a sum of positive squares in 4 ways, for example, as 42947995254784 + 262682440365361 = 6553472^2 + 16207481^2 .

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 305630435620145 - 2¹⁴ = 305630435603761 is a prime.

It is a super-2 number, since 2×305630435620145² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 305630435620145.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6195605492 + ... + 6195654821.

It is an arithmetic number, because the mean of its divisors is an integer number (45853858791957).

Almost surely, 2^{305630435620145} is an apocalyptic number.

It is an amenable number.

305630435620145 is a deficient number, since it is larger than the sum of its proper divisors (61200434715511).

305630435620145 is a wasteful number, since it uses less digits than its factorization.

305630435620145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391265251.

The product of its (nonzero) digits is 3888000, while the sum is 47.

Adding to 305630435620145 its reverse (541026534036503), we get a palindrome (846656969656648).

The spelling of 305630435620145 in words is "three hundred five trillion, six hundred thirty billion, four hundred thirty-five million, six hundred twenty thousand, one hundred forty-five".