247133 has 4 divisors (see below), whose sum is σ = 260160. Its totient is φ = 234108.

The previous prime is 247099. The next prime is 247141. The reversal of 247133 is 331742.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 247133 - 2⁶ = 247069 is a prime.

It is a super-2 number, since 2×247133² = 122149439378, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

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 247133.

It is not an unprimeable number, because it can be changed into a prime (247183) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 6485 + ... + 6522.

It is an arithmetic number, because the mean of its divisors is an integer number (65040).

2²⁴⁷¹³³ is an apocalyptic number.

It is an amenable number.

247133 is a deficient number, since it is larger than the sum of its proper divisors (13027).

247133 is a wasteful number, since it uses less digits than its factorization.

247133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13026.

The product of its digits is 504, while the sum is 20.

The square root of 247133 is about 497.1247328388. The cubic root of 247133 is about 62.7543131271.

Adding to 247133 its reverse (331742), we get a palindrome (578875).

The spelling of 247133 in words is "two hundred forty-seven thousand, one hundred thirty-three".