653245 has 4 divisors (see below), whose sum is σ = 783900. Its totient is φ = 522592.

The previous prime is 653243. The next prime is 653267. The reversal of 653245 is 542356.

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 412164 + 241081 = 642^2 + 491^2 .

It is a cyclic number.

It is not a de Polignac number, because 653245 - 2¹ = 653243 is a prime.

It is a d-powerful number, because it can be written as 6³ + 5⁶ + 2¹⁶ + 3¹¹ + 4⁶ + 5⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (653243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65320 + ... + 65329.

It is an arithmetic number, because the mean of its divisors is an integer number (195975).

2⁶⁵³²⁴⁵ is an apocalyptic number.

It is an amenable number.

653245 is a deficient number, since it is larger than the sum of its proper divisors (130655).

653245 is a wasteful number, since it uses less digits than its factorization.

653245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130654.

The product of its digits is 3600, while the sum is 25.

The square root of 653245 is about 808.2357329393. The cubic root of 653245 is about 86.7678223867.

Subtracting from 653245 its reverse (542356), we obtain a square (110889 = 333²).

It can be divided in two parts, 653 and 245, that added together give a palindrome (898).

The spelling of 653245 in words is "six hundred fifty-three thousand, two hundred forty-five".