1236013325 has 6 divisors (see below), whose sum is σ = 1532656554. Its totient is φ = 988810640.

The previous prime is 1236013309. The next prime is 1236013367. The reversal of 1236013325 is 5233106321.

It can be written as a sum of positive squares in 3 ways, for example, as 3511876 + 1232501449 = 1874^2 + 35107^2 .

It is not a de Polignac number, because 1236013325 - 2⁴ = 1236013309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1236013294 and 1236013303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24720242 + ... + 24720291.

It is an arithmetic number, because the mean of its divisors is an integer number (255442759).

Almost surely, 2^1236013325 is an apocalyptic number.

It is an amenable number.

1236013325 is a deficient number, since it is larger than the sum of its proper divisors (296643229).

1236013325 is an equidigital number, since it uses as much as digits as its factorization.

1236013325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49440543 (or 49440538 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1236013325 is about 35156.9811701744. The cubic root of 1236013325 is about 1073.1844820028.

Adding to 1236013325 its reverse (5233106321), we get a palindrome (6469119646).

The spelling of 1236013325 in words is "one billion, two hundred thirty-six million, thirteen thousand, three hundred twenty-five".