271218973 has 2 divisors, whose sum is σ = 271218974. Its totient is φ = 271218972.

The previous prime is 271218953. The next prime is 271219001. The reversal of 271218973 is 379812172.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175218169 + 96000804 = 13237^2 + 9798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271218973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271218953) 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, 135609486 + 135609487.

It is an arithmetic number, because the mean of its divisors is an integer number (135609487).

Almost surely, 2^271218973 is an apocalyptic number.

It is an amenable number.

271218973 is a deficient number, since it is larger than the sum of its proper divisors (1).

271218973 is an equidigital number, since it uses as much as digits as its factorization.

271218973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42336, while the sum is 40.

The square root of 271218973 is about 16468.7271214262. The cubic root of 271218973 is about 647.3016127216.

The spelling of 271218973 in words is "two hundred seventy-one million, two hundred eighteen thousand, nine hundred seventy-three".