270891043 has 2 divisors, whose sum is σ = 270891044. Its totient is φ = 270891042.

The previous prime is 270891041. The next prime is 270891077. The reversal of 270891043 is 340198072.

It is an a-pointer prime, because the next prime (270891077) can be obtained adding 270891043 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 270891043 - 2¹ = 270891041 is a prime.

Together with 270891041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (270891041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135445521 + 135445522.

It is an arithmetic number, because the mean of its divisors is an integer number (135445522).

Almost surely, 2^270891043 is an apocalyptic number.

270891043 is a deficient number, since it is larger than the sum of its proper divisors (1).

270891043 is an equidigital number, since it uses as much as digits as its factorization.

270891043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 270891043 is about 16458.7679672568. The cubic root of 270891043 is about 647.0406240642.

The spelling of 270891043 in words is "two hundred seventy million, eight hundred ninety-one thousand, forty-three".