270129161 has 2 divisors, whose sum is σ = 270129162. Its totient is φ = 270129160.

The previous prime is 270129157. The next prime is 270129187. The reversal of 270129161 is 161921072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 252015625 + 18113536 = 15875^2 + 4256^2 .

It is a cyclic number.

It is not a de Polignac number, because 270129161 - 2² = 270129157 is a prime.

It is not a weakly prime, because it can be changed into another prime (270129131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135064580 + 135064581.

It is an arithmetic number, because the mean of its divisors is an integer number (135064581).

Almost surely, 2^270129161 is an apocalyptic number.

It is an amenable number.

270129161 is a deficient number, since it is larger than the sum of its proper divisors (1).

270129161 is an equidigital number, since it uses as much as digits as its factorization.

270129161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 270129161 is about 16435.6064993051. The cubic root of 270129161 is about 646.4334531498.

The spelling of 270129161 in words is "two hundred seventy million, one hundred twenty-nine thousand, one hundred sixty-one".