126343545025 has 12 divisors (see below), whose sum is σ = 156921587452. Its totient is φ = 100909938240.

The previous prime is 126343545017. The next prime is 126343545061. The reversal of 126343545025 is 520545343621.

It can be written as a sum of positive squares in 6 ways, for example, as 54772849296 + 71570695729 = 234036^2 + 267527^2 .

It is not a de Polignac number, because 126343545025 - 2³ = 126343545017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4106814 + ... + 4137463.

Almost surely, 2^126343545025 is an apocalyptic number.

It is an amenable number.

126343545025 is a deficient number, since it is larger than the sum of its proper divisors (30578042427).

126343545025 is an equidigital number, since it uses as much as digits as its factorization.

126343545025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244900 (or 8244895 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 40.

Adding to 126343545025 its reverse (520545343621), we get a palindrome (646888888646).

The spelling of 126343545025 in words is "one hundred twenty-six billion, three hundred forty-three million, five hundred forty-five thousand, twenty-five".