1236260125 has 8 divisors (see below), whose sum is σ = 1542852792. Its totient is φ = 989008000.

The previous prime is 1236260117. The next prime is 1236260147. The reversal of 1236260125 is 5210626321.

It can be written as a sum of positive squares in 4 ways, for example, as 2424249 + 1233835876 = 1557^2 + 35126^2 .

It is not a de Polignac number, because 1236260125 - 2³ = 1236260117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1236260093 and 1236260102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4944916 + ... + 4945165.

It is an arithmetic number, because the mean of its divisors is an integer number (192856599).

Almost surely, 2^1236260125 is an apocalyptic number.

It is an amenable number.

1236260125 is a deficient number, since it is larger than the sum of its proper divisors (306592667).

1236260125 is an frugal number, since it uses more digits than its factorization.

1236260125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9890096 (or 9890086 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1236260125 is about 35160.4909664242. The cubic root of 1236260125 is about 1073.2559063416.

Adding to 1236260125 its reverse (5210626321), we get a palindrome (6446886446).

The spelling of 1236260125 in words is "one billion, two hundred thirty-six million, two hundred sixty thousand, one hundred twenty-five".