245633 has 4 divisors (see below), whose sum is σ = 260100. Its totient is φ = 231168.

The previous prime is 245629. The next prime is 245639. The reversal of 245633 is 336542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 223729 + 21904 = 473^2 + 148^2 .

It is a cyclic number.

It is not a de Polignac number, because 245633 - 2² = 245629 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 4⁵ + 6³ + 5 + 3¹⁰ + 3¹¹ .

It is a junction number, because it is equal to n+sod(n) for n = 245599 and 245608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245639) 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, 7208 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (65025).

2²⁴⁵⁶³³ is an apocalyptic number.

It is an amenable number.

245633 is a deficient number, since it is larger than the sum of its proper divisors (14467).

245633 is a wasteful number, since it uses less digits than its factorization.

245633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466.

The product of its digits is 2160, while the sum is 23.

The square root of 245633 is about 495.6137609066. The cubic root of 245633 is about 62.6270907253.

Subtracting 245633 from its reverse (336542), we obtain a palindrome (90909).

It can be divided in two parts, 245 and 633, that added together give a palindrome (878).

The spelling of 245633 in words is "two hundred forty-five thousand, six hundred thirty-three".