126401236225 has 12 divisors (see below), whose sum is σ = 170986399920. Its totient is φ = 91928171600.

The previous prime is 126401236163. The next prime is 126401236237. The reversal of 126401236225 is 522632104621.

It is not a de Polignac number, because 126401236225 - 2¹⁵ = 126401203457 is a prime.

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, 229820155 + ... + 229820704.

It is an arithmetic number, because the mean of its divisors is an integer number (14248866660).

Almost surely, 2^126401236225 is an apocalyptic number.

It is an amenable number.

126401236225 is a deficient number, since it is larger than the sum of its proper divisors (44585163695).

126401236225 is a wasteful number, since it uses less digits than its factorization.

126401236225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459640880 (or 459640875 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 126401236225 in words is "one hundred twenty-six billion, four hundred one million, two hundred thirty-six thousand, two hundred twenty-five".