243312425 has 12 divisors (see below), whose sum is σ = 305345040. Its totient is φ = 192303120.

The previous prime is 243312389. The next prime is 243312463. The reversal of 243312425 is 524213342.

It is not a de Polignac number, because 243312425 - 2¹⁰ = 243311401 is a prime.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 243312394 and 243312403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56555 + ... + 60704.

It is an arithmetic number, because the mean of its divisors is an integer number (25445420).

Almost surely, 2^243312425 is an apocalyptic number.

243312425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243312425 is a deficient number, since it is larger than the sum of its proper divisors (62032615).

243312425 is a wasteful number, since it uses less digits than its factorization.

243312425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117352 (or 117347 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 243312425 is about 15598.4750857255. The cubic root of 243312425 is about 624.2924686747.

Adding to 243312425 its reverse (524213342), we get a palindrome (767525767).

The spelling of 243312425 in words is "two hundred forty-three million, three hundred twelve thousand, four hundred twenty-five".