243623125 has 10 divisors (see below), whose sum is σ = 304432238. Its totient is φ = 194898000.

The previous prime is 243623101. The next prime is 243623129. The reversal of 243623125 is 521326342.

243623125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 110313009 + 133310116 = 10503^2 + 11546^2 .

It is not a de Polignac number, because 243623125 - 2¹³ = 243614933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243623093 and 243623102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243623129) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 194274 + ... + 195523.

Almost surely, 2^243623125 is an apocalyptic number.

243623125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243623125 is a deficient number, since it is larger than the sum of its proper divisors (60809113).

243623125 is an frugal number, since it uses more digits than its factorization.

243623125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389817 (or 389802 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 243623125 is about 15608.4312152119. The cubic root of 243623125 is about 624.5580876152.

Adding to 243623125 its reverse (521326342), we get a palindrome (764949467).

The spelling of 243623125 in words is "two hundred forty-three million, six hundred twenty-three thousand, one hundred twenty-five".