613136403 has 36 divisors (see below), whose sum is σ = 1024743720. Its totient is φ = 352028160.

The previous prime is 613136353. The next prime is 613136413. The reversal of 613136403 is 304631316.

613136403 is a `hidden beast` number, since 6 + 1 + 3 + 13 + 640 + 3 = 666.

It is not a de Polignac number, because 613136403 - 2¹⁷ = 613005331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (613136413) 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 35 ways as a sum of consecutive naturals, for example, 5875 + ... + 35507.

Almost surely, 2^613136403 is an apocalyptic number.

613136403 is a deficient number, since it is larger than the sum of its proper divisors (411607317).

613136403 is a wasteful number, since it uses less digits than its factorization.

613136403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29680 (or 29666 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 613136403 is about 24761.5912856989. The cubic root of 613136403 is about 849.5436549275.

Adding to 613136403 its reverse (304631316), we get a palindrome (917767719).

The spelling of 613136403 in words is "six hundred thirteen million, one hundred thirty-six thousand, four hundred three".