618964147 has 2 divisors, whose sum is σ = 618964148. Its totient is φ = 618964146.

The previous prime is 618964141. The next prime is 618964163. The reversal of 618964147 is 741469816.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 618964147 - 2⁷ = 618964019 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 618964097 and 618964106.

It is not a weakly prime, because it can be changed into another prime (618964141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 309482073 + 309482074.

It is an arithmetic number, because the mean of its divisors is an integer number (309482074).

Almost surely, 2^618964147 is an apocalyptic number.

618964147 is a deficient number, since it is larger than the sum of its proper divisors (1).

618964147 is an equidigital number, since it uses as much as digits as its factorization.

618964147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 46.

The square root of 618964147 is about 24878.9900719462. The cubic root of 618964147 is about 852.2267552202.

The spelling of 618964147 in words is "six hundred eighteen million, nine hundred sixty-four thousand, one hundred forty-seven".