271022981 has 2 divisors, whose sum is σ = 271022982. Its totient is φ = 271022980.

The previous prime is 271022963. The next prime is 271023029. The reversal of 271022981 is 189220172.

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., 263542756 + 7480225 = 16234^2 + 2735^2 .

It is a cyclic number.

It is not a de Polignac number, because 271022981 - 2¹⁰ = 271021957 is a prime.

It is a super-2 number, since 2×271022981² = 146906912460252722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271022681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135511490 + 135511491.

It is an arithmetic number, because the mean of its divisors is an integer number (135511491).

Almost surely, 2^271022981 is an apocalyptic number.

It is an amenable number.

271022981 is a deficient number, since it is larger than the sum of its proper divisors (1).

271022981 is an equidigital number, since it uses as much as digits as its factorization.

271022981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 271022981 is about 16462.7756165235. The cubic root of 271022981 is about 647.1456544716.

The spelling of 271022981 in words is "two hundred seventy-one million, twenty-two thousand, nine hundred eighty-one".