247265 has 8 divisors (see below), whose sum is σ = 314280. Its totient is φ = 186112.

The previous prime is 247259. The next prime is 247279. The reversal of 247265 is 562742.

It can be written as a sum of positive squares in 4 ways, for example, as 96721 + 150544 = 311^2 + 388^2 .

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 247265 - 2⁴ = 247249 is a prime.

It is a super-3 number, since 3×247265³ = 45353331631003875, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247265.

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, 1370 + ... + 1539.

It is an arithmetic number, because the mean of its divisors is an integer number (39285).

2²⁴⁷²⁶⁵ is an apocalyptic number.

It is an amenable number.

247265 is a deficient number, since it is larger than the sum of its proper divisors (67015).

247265 is a wasteful number, since it uses less digits than its factorization.

247265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931.

The product of its digits is 3360, while the sum is 26.

The square root of 247265 is about 497.2574785762. The cubic root of 247265 is about 62.7654840283.

It can be divided in two parts, 247 and 265, that added together give a 9-th power (512 = 2⁹).

The spelling of 247265 in words is "two hundred forty-seven thousand, two hundred sixty-five".