270981 has 6 divisors (see below), whose sum is σ = 391430. Its totient is φ = 180648.

The previous prime is 270973. The next prime is 271003. The reversal of 270981 is 189072.

It can be written as a sum of positive squares in only one way, i.e., 216225 + 54756 = 465^2 + 234^2 .

It is not a de Polignac number, because 270981 - 2³ = 270973 is a prime.

It is a super-2 number, since 2×270981² = 146861404722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15046 + ... + 15063.

2²⁷⁰⁹⁸¹ is an apocalyptic number.

It is an amenable number.

270981 is a deficient number, since it is larger than the sum of its proper divisors (120449).

270981 is a wasteful number, since it uses less digits than its factorization.

270981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30115 (or 30112 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 270981 is about 520.5583540776. The cubic root of 270981 is about 64.7112238825.

The spelling of 270981 in words is "two hundred seventy thousand, nine hundred eighty-one".