243154225 has 12 divisors (see below), whose sum is σ = 301806576. Its totient is φ = 194332880.

The previous prime is 243154193. The next prime is 243154237. The reversal of 243154225 is 522451342.

It is not a de Polignac number, because 243154225 - 2⁵ = 243154193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243154193 and 243154202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24894 + ... + 33256.

It is an arithmetic number, because the mean of its divisors is an integer number (25150548).

Almost surely, 2^243154225 is an apocalyptic number.

243154225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243154225 is a deficient number, since it is larger than the sum of its proper divisors (58652351).

243154225 is a wasteful number, since it uses less digits than its factorization.

243154225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9536 (or 9531 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 243154225 is about 15593.4032526578. The cubic root of 243154225 is about 624.1571358390.

The spelling of 243154225 in words is "two hundred forty-three million, one hundred fifty-four thousand, two hundred twenty-five".