613504103 has 2 divisors, whose sum is σ = 613504104. Its totient is φ = 613504102.

The previous prime is 613504079. The next prime is 613504117. The reversal of 613504103 is 301405316.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613504103 - 2⁶ = 613504039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613504123) 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 as a sum of consecutive naturals, namely, 306752051 + 306752052.

It is an arithmetic number, because the mean of its divisors is an integer number (306752052).

Almost surely, 2^613504103 is an apocalyptic number.

613504103 is a deficient number, since it is larger than the sum of its proper divisors (1).

613504103 is an equidigital number, since it uses as much as digits as its factorization.

613504103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 613504103 is about 24769.0149783959. The cubic root of 613504103 is about 849.7134457368.

Adding to 613504103 its reverse (301405316), we get a palindrome (914909419).

The spelling of 613504103 in words is "six hundred thirteen million, five hundred four thousand, one hundred three".