270617161 has 2 divisors, whose sum is σ = 270617162. Its totient is φ = 270617160.

The previous prime is 270617159. The next prime is 270617173. The reversal of 270617161 is 161716072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 260015625 + 10601536 = 16125^2 + 3256^2 .

It is a cyclic number.

It is not a de Polignac number, because 270617161 - 2¹ = 270617159 is a prime.

Together with 270617159, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (270617131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135308580 + 135308581.

It is an arithmetic number, because the mean of its divisors is an integer number (135308581).

Almost surely, 2^270617161 is an apocalyptic number.

It is an amenable number.

270617161 is a deficient number, since it is larger than the sum of its proper divisors (1).

270617161 is an equidigital number, since it uses as much as digits as its factorization.

270617161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 270617161 is about 16450.4456170646. The cubic root of 270617161 is about 646.8224889609.

The spelling of 270617161 in words is "two hundred seventy million, six hundred seventeen thousand, one hundred sixty-one".