1236313225 has 48 divisors (see below), whose sum is σ = 1787921280. Its totient is φ = 830592000.

The previous prime is 1236313193. The next prime is 1236313259. The reversal of 1236313225 is 5223136321.

It is not a de Polignac number, because 1236313225 - 2⁵ = 1236313193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1236313193 and 1236313202.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1996966 + ... + 1997584.

It is an arithmetic number, because the mean of its divisors is an integer number (37248360).

Almost surely, 2^1236313225 is an apocalyptic number.

It is an amenable number.

1236313225 is a deficient number, since it is larger than the sum of its proper divisors (551608055).

1236313225 is a wasteful number, since it uses less digits than its factorization.

1236313225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 845 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 1236313225 is about 35161.2460672258. The cubic root of 1236313225 is about 1073.2712723291.

Adding to 1236313225 its reverse (5223136321), we get a palindrome (6459449546).

The spelling of 1236313225 in words is "one billion, two hundred thirty-six million, three hundred thirteen thousand, two hundred twenty-five".