270257 has 4 divisors (see below), whose sum is σ = 291060. Its totient is φ = 249456.

The previous prime is 270241. The next prime is 270269. The reversal of 270257 is 752072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 141376 + 128881 = 376^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 270257 - 2⁴ = 270241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10382 + ... + 10407.

It is an arithmetic number, because the mean of its divisors is an integer number (72765).

2²⁷⁰²⁵⁷ is an apocalyptic number.

It is an amenable number.

270257 is a deficient number, since it is larger than the sum of its proper divisors (20803).

270257 is a wasteful number, since it uses less digits than its factorization.

270257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20802.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 270257 is about 519.8624818161. The cubic root of 270257 is about 64.6535412243.

The spelling of 270257 in words is "two hundred seventy thousand, two hundred fifty-seven".