270329981 has 2 divisors, whose sum is σ = 270329982. Its totient is φ = 270329980.

The previous prime is 270329977. The next prime is 270330037. The reversal of 270329981 is 189923072.

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., 219336100 + 50993881 = 14810^2 + 7141^2 .

It is a cyclic number.

It is not a de Polignac number, because 270329981 - 2² = 270329977 is a prime.

It is a super-2 number, since 2×270329981² = 146156597254920722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (270329911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135164990 + 135164991.

It is an arithmetic number, because the mean of its divisors is an integer number (135164991).

Almost surely, 2^270329981 is an apocalyptic number.

It is an amenable number.

270329981 is a deficient number, since it is larger than the sum of its proper divisors (1).

270329981 is an equidigital number, since it uses as much as digits as its factorization.

270329981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 270329981 is about 16441.7146611903. The cubic root of 270329981 is about 646.5936044509.

The spelling of 270329981 in words is "two hundred seventy million, three hundred twenty-nine thousand, nine hundred eighty-one".