611117147 has 2 divisors, whose sum is σ = 611117148. Its totient is φ = 611117146.

The previous prime is 611117141. The next prime is 611117239. The reversal of 611117147 is 741711116.

611117147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 611117147 - 2¹² = 611113051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (611117141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305558573 + 305558574.

It is an arithmetic number, because the mean of its divisors is an integer number (305558574).

Almost surely, 2^611117147 is an apocalyptic number.

611117147 is a deficient number, since it is larger than the sum of its proper divisors (1).

611117147 is an equidigital number, since it uses as much as digits as its factorization.

611117147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176, while the sum is 29.

The square root of 611117147 is about 24720.7837052145. The cubic root of 611117147 is about 848.6100221395.

The spelling of 611117147 in words is "six hundred eleven million, one hundred seventeen thousand, one hundred forty-seven".