270136649 has 2 divisors, whose sum is σ = 270136650. Its totient is φ = 270136648.

The previous prime is 270136591. The next prime is 270136651. The reversal of 270136649 is 946631072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270010624 + 126025 = 16432^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 270136649 - 2¹² = 270132553 is a prime.

It is a Sophie Germain prime.

Together with 270136651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (270136049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135068324 + 135068325.

It is an arithmetic number, because the mean of its divisors is an integer number (135068325).

Almost surely, 2^270136649 is an apocalyptic number.

It is an amenable number.

270136649 is a deficient number, since it is larger than the sum of its proper divisors (1).

270136649 is an equidigital number, since it uses as much as digits as its factorization.

270136649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 270136649 is about 16435.8342958306. The cubic root of 270136649 is about 646.4394261554.

The spelling of 270136649 in words is "two hundred seventy million, one hundred thirty-six thousand, six hundred forty-nine".