126304515225 has 144 divisors (see below), whose sum is σ = 260568322560. Its totient is φ = 57289075200.

The previous prime is 126304515223. The next prime is 126304515257. The reversal of 126304515225 is 522515403621.

126304515225 is a `hidden beast` number, since 1 + 2 + 630 + 4 + 5 + 15 + 2 + 2 + 5 = 666.

It is not a de Polignac number, because 126304515225 - 2¹ = 126304515223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126304515225.

It is not an unprimeable number, because it can be changed into a prime (126304515223) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 158474527 + ... + 158475323.

It is an arithmetic number, because the mean of its divisors is an integer number (1809502240).

Almost surely, 2^126304515225 is an apocalyptic number.

126304515225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126304515225 is an abundant number, since it is smaller than the sum of its proper divisors (134263807335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126304515225 is a wasteful number, since it uses less digits than its factorization.

126304515225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1472 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 126304515225 its reverse (522515403621), we get a palindrome (648819918846).

The spelling of 126304515225 in words is "one hundred twenty-six billion, three hundred four million, five hundred fifteen thousand, two hundred twenty-five".