243115154425 has 48 divisors (see below), whose sum is σ = 354255451200. Its totient is φ = 163168992000.

The previous prime is 243115154419. The next prime is 243115154459. The reversal of 243115154425 is 524451511342.

It is not a de Polignac number, because 243115154425 - 2⁷ = 243115154297 is a prime.

It is a super-2 number, since 2×243115154425² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22198851 + ... + 22209799.

It is an arithmetic number, because the mean of its divisors is an integer number (7380321900).

Almost surely, 2^243115154425 is an apocalyptic number.

243115154425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243115154425 is a deficient number, since it is larger than the sum of its proper divisors (111140296775).

243115154425 is a wasteful number, since it uses less digits than its factorization.

243115154425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17194 (or 17189 counting only the distinct ones).

The product of its digits is 96000, while the sum is 37.

Adding to 243115154425 its reverse (524451511342), we get a palindrome (767566665767).

The spelling of 243115154425 in words is "two hundred forty-three billion, one hundred fifteen million, one hundred fifty-four thousand, four hundred twenty-five".