259136 has 14 divisors (see below), whose sum is σ = 514350. Its totient is φ = 129536.

The previous prime is 259123. The next prime is 259151. The reversal of 259136 is 631952.

It can be written as a sum of positive squares in only one way, i.e., 193600 + 65536 = 440^2 + 256^2 .

It is an Ulam number.

It is a nialpdrome in base 8.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 259136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1961 + ... + 2088.

2²⁵⁹¹³⁶ is an apocalyptic number.

It is an amenable number.

259136 is a deficient number, since it is larger than the sum of its proper divisors (255214).

259136 is an equidigital number, since it uses as much as digits as its factorization.

259136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061 (or 4051 counting only the distinct ones).

The product of its digits is 1620, while the sum is 26.

The square root of 259136 is about 509.0540246379. The cubic root of 259136 is about 63.7542660224.

Subtracting 259136 from its reverse (631952), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 259136 in words is "two hundred fifty-nine thousand, one hundred thirty-six".