1262500125125 has 8 divisors (see below), whose sum is σ = 1575600156312. Its totient is φ = 1010000100000.

The previous prime is 1262500125121. The next prime is 1262500125149. The reversal of 1262500125125 is 5215210052621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 241589944324 + 1020910180801 = 491518^2 + 1010401^2 .

It is not a de Polignac number, because 1262500125125 - 2² = 1262500125121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1262500125091 and 1262500125100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1262500125121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5050000376 + ... + 5050000625.

It is an arithmetic number, because the mean of its divisors is an integer number (196950019539).

Almost surely, 2^{1262500125125} is an apocalyptic number.

It is an amenable number.

1262500125125 is a deficient number, since it is larger than the sum of its proper divisors (313100031187).

1262500125125 is an equidigital number, since it uses as much as digits as its factorization.

1262500125125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100001016 (or 10100001006 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 1262500125125 its reverse (5215210052621), we get a palindrome (6477710177746).

The spelling of 1262500125125 in words is "one trillion, two hundred sixty-two billion, five hundred million, one hundred twenty-five thousand, one hundred twenty-five".