257234 has 8 divisors (see below), whose sum is σ = 395388. Its totient is φ = 125440.

The previous prime is 257221. The next prime is 257239. The reversal of 257234 is 432752.

It can be written as a sum of positive squares in 2 ways, for example, as 255025 + 2209 = 505^2 + 47^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (257239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487 + ... + 1650.

2²⁵⁷²³⁴ is an apocalyptic number.

257234 is a deficient number, since it is larger than the sum of its proper divisors (138154).

257234 is a wasteful number, since it uses less digits than its factorization.

257234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180.

The product of its digits is 1680, while the sum is 23.

The square root of 257234 is about 507.1824129443. The cubic root of 257234 is about 63.5979021762.

Adding to 257234 its reverse (432752), we get a palindrome (689986).

The spelling of 257234 in words is "two hundred fifty-seven thousand, two hundred thirty-four".