306214066515145 has 4 divisors (see below), whose sum is σ = 367456879818180. Its totient is φ = 244971253212112.

The previous prime is 306214066515127. The next prime is 306214066515179. The reversal of 306214066515145 is 541515660412603.

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 88706315070409 + 217507751444736 = 9418403^2 + 14748144^2 .

It is a cyclic number.

It is not a de Polignac number, because 306214066515145 - 2¹¹ = 306214066513097 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30621406651510 + ... + 30621406651519.

It is an arithmetic number, because the mean of its divisors is an integer number (91864219954545).

Almost surely, 2^{306214066515145} is an apocalyptic number.

It is an amenable number.

306214066515145 is a deficient number, since it is larger than the sum of its proper divisors (61242813303035).

306214066515145 is an equidigital number, since it uses as much as digits as its factorization.

306214066515145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61242813303034.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 306214066515145 in words is "three hundred six trillion, two hundred fourteen billion, sixty-six million, five hundred fifteen thousand, one hundred forty-five".