126543225 has 24 divisors (see below), whose sum is σ = 211262272. Its totient is φ = 66830400.

The previous prime is 126543191. The next prime is 126543233. The reversal of 126543225 is 522345621.

It is not a de Polignac number, because 126543225 - 2¹⁸ = 126281081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126543192 and 126543201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466 + ... + 15915.

Almost surely, 2^126543225 is an apocalyptic number.

126543225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126543225 is a deficient number, since it is larger than the sum of its proper divisors (84719047).

126543225 is a wasteful number, since it uses less digits than its factorization.

126543225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16497 (or 16492 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 126543225 is about 11249.1433007141. The cubic root of 126543225 is about 502.0492232279.

Adding to 126543225 its reverse (522345621), we get a palindrome (648888846).

The spelling of 126543225 in words is "one hundred twenty-six million, five hundred forty-three thousand, two hundred twenty-five".