126432125 has 16 divisors (see below), whose sum is σ = 158237040. Its totient is φ = 100857600.

The previous prime is 126432121. The next prime is 126432133. The reversal of 126432125 is 521234621.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6770404 + 119661721 = 2602^2 + 10939^2 .

It is not a de Polignac number, because 126432125 - 2² = 126432121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126432094 and 126432103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126432121) 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, 49889 + ... + 52361.

It is an arithmetic number, because the mean of its divisors is an integer number (9889815).

Almost surely, 2^126432125 is an apocalyptic number.

It is an amenable number.

126432125 is a deficient number, since it is larger than the sum of its proper divisors (31804915).

126432125 is an equidigital number, since it uses as much as digits as its factorization.

126432125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2897 (or 2887 counting only the distinct ones).

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

The square root of 126432125 is about 11244.2040625382. The cubic root of 126432125 is about 501.9022536839.

Adding to 126432125 its reverse (521234621), we get a palindrome (647666746).

The spelling of 126432125 in words is "one hundred twenty-six million, four hundred thirty-two thousand, one hundred twenty-five".