265915 has 8 divisors (see below), whose sum is σ = 343728. Its totient is φ = 196320.

The previous prime is 265891. The next prime is 265921. The reversal of 265915 is 519562.

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

It is not a de Polignac number, because 265915 - 2⁵ = 265883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2²⁶⁵⁹¹⁵ is an apocalyptic number.

265915 is a deficient number, since it is larger than the sum of its proper divisors (77813).

265915 is a wasteful number, since it uses less digits than its factorization.

265915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4109.

The product of its digits is 2700, while the sum is 28.

The square root of 265915 is about 515.6694677795. The cubic root of 265915 is about 64.3054248789.

The spelling of 265915 in words is "two hundred sixty-five thousand, nine hundred fifteen".