243126125 has 16 divisors (see below), whose sum is σ = 331007040. Its totient is φ = 176818000.

The previous prime is 243126119. The next prime is 243126127. The reversal of 243126125 is 521621342.

It is a happy number.

It is not a de Polignac number, because 243126125 - 2¹⁰ = 243125101 is a prime.

It is a super-2 number, since 2×243126125² = 118220625315031250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243126094 and 243126103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243126127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87035 + ... + 89784.

It is an arithmetic number, because the mean of its divisors is an integer number (20687940).

Almost surely, 2^243126125 is an apocalyptic number.

243126125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243126125 is a deficient number, since it is larger than the sum of its proper divisors (87880915).

243126125 is a wasteful number, since it uses less digits than its factorization.

243126125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176845 (or 176835 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 243126125 is about 15592.5022045854. The cubic root of 243126125 is about 624.1330914406.

Adding to 243126125 its reverse (521621342), we get a palindrome (764747467).

The spelling of 243126125 in words is "two hundred forty-three million, one hundred twenty-six thousand, one hundred twenty-five".