265287 has 8 divisors (see below), whose sum is σ = 385920. Its totient is φ = 160760.

The previous prime is 265277. The next prime is 265313. The reversal of 265287 is 782562.

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

It is a cyclic number.

It is not a de Polignac number, because 265287 - 2⁴ = 265271 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 265287.

It is not an unprimeable number, because it can be changed into a prime (265207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3987 + ... + 4052.

It is an arithmetic number, because the mean of its divisors is an integer number (48240).

2²⁶⁵²⁸⁷ is an apocalyptic number.

265287 is a deficient number, since it is larger than the sum of its proper divisors (120633).

265287 is a wasteful number, since it uses less digits than its factorization.

265287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8053.

The product of its digits is 6720, while the sum is 30.

The square root of 265287 is about 515.0601906574. The cubic root of 265287 is about 64.2547625250.

The spelling of 265287 in words is "two hundred sixty-five thousand, two hundred eighty-seven".