2730939161 has 2 divisors, whose sum is σ = 2730939162. Its totient is φ = 2730939160.

The previous prime is 2730939157. The next prime is 2730939181. The reversal of 2730939161 is 1619390372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2672890000 + 58049161 = 51700^2 + 7619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2730939161 - 2² = 2730939157 is a prime.

It is not a weakly prime, because it can be changed into another prime (2730939121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365469580 + 1365469581.

It is an arithmetic number, because the mean of its divisors is an integer number (1365469581).

Almost surely, 2^2730939161 is an apocalyptic number.

It is an amenable number.

2730939161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2730939161 is an equidigital number, since it uses as much as digits as its factorization.

2730939161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 2730939161 is about 52258.3884271224. The cubic root of 2730939161 is about 1397.7752353376.

The spelling of 2730939161 in words is "two billion, seven hundred thirty million, nine hundred thirty-nine thousand, one hundred sixty-one".