257116 has 6 divisors (see below), whose sum is σ = 449960. Its totient is φ = 128556.

The previous prime is 257107. The next prime is 257123. The reversal of 257116 is 611752.

It is a super-2 number, since 2×257116² = 132217274912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 32136 + ... + 32143.

2²⁵⁷¹¹⁶ is an apocalyptic number.

It is an amenable number.

257116 is a deficient number, since it is larger than the sum of its proper divisors (192844).

257116 is a wasteful number, since it uses less digits than its factorization.

257116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64283 (or 64281 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 257116 is about 507.0660706456. The cubic root of 257116 is about 63.5881760122.

Adding to 257116 its reverse (611752), we get a palindrome (868868).

It can be divided in two parts, 257 and 116, that added together give a palindrome (373).

The spelling of 257116 in words is "two hundred fifty-seven thousand, one hundred sixteen".