1313202225 has 24 divisors (see below), whose sum is σ = 2188272640. Its totient is φ = 694854720.

The previous prime is 1313202223. The next prime is 1313202229. The reversal of 1313202225 is 5222023131.

It is not a de Polignac number, because 1313202225 - 2¹ = 1313202223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313202223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59410 + ... + 78459.

Almost surely, 2^1313202225 is an apocalyptic number.

1313202225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1313202225 is a deficient number, since it is larger than the sum of its proper divisors (875070415).

1313202225 is a wasteful number, since it uses less digits than its factorization.

1313202225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138009 (or 138004 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1313202225 is about 36238.1321952443. The cubic root of 1313202225 is about 1095.0750141475.

Adding to 1313202225 its reverse (5222023131), we get a palindrome (6535225356).

The spelling of 1313202225 in words is "one billion, three hundred thirteen million, two hundred two thousand, two hundred twenty-five".