270530257 has 2 divisors, whose sum is σ = 270530258. Its totient is φ = 270530256.

The previous prime is 270530237. The next prime is 270530263. The reversal of 270530257 is 752035072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148449856 + 122080401 = 12184^2 + 11049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270530257 is a prime.

It is not a weakly prime, because it can be changed into another prime (270530237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135265128 + 135265129.

It is an arithmetic number, because the mean of its divisors is an integer number (135265129).

Almost surely, 2^270530257 is an apocalyptic number.

It is an amenable number.

270530257 is a deficient number, since it is larger than the sum of its proper divisors (1).

270530257 is an equidigital number, since it uses as much as digits as its factorization.

270530257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 270530257 is about 16447.8040175581. The cubic root of 270530257 is about 646.7532429462.

The spelling of 270530257 in words is "two hundred seventy million, five hundred thirty thousand, two hundred fifty-seven".