243625 has 8 divisors (see below), whose sum is σ = 304200. Its totient is φ = 194800.

The previous prime is 243623. The next prime is 243631. The reversal of 243625 is 526342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 576 + 243049 = 24^2 + 493^2 .

It is not a de Polignac number, because 243625 - 2¹ = 243623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243596 and 243605.

It is not an unprimeable number, because it can be changed into a prime (243623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (38025).

2²⁴³⁶²⁵ is an apocalyptic number.

243625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243625 is a deficient number, since it is larger than the sum of its proper divisors (60575).

243625 is an equidigital number, since it uses as much as digits as its factorization.

243625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1964 (or 1954 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 243625 is about 493.5838327984. The cubic root of 243625 is about 62.4559689876.

Adding to 243625 its reverse (526342), we get a palindrome (769967).

It can be divided in two parts, 243 and 625, that added together give a palindrome (868).

The spelling of 243625 in words is "two hundred forty-three thousand, six hundred twenty-five".