12613403 has 6 divisors (see below), whose sum is σ = 13864452. Its totient is φ = 11466620.

The previous prime is 12613387. The next prime is 12613409. The reversal of 12613403 is 30431621.

12613403 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12613403 - 2⁴ = 12613387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12613409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52001 + ... + 52242.

It is an arithmetic number, because the mean of its divisors is an integer number (2310742).

Almost surely, 2^12613403 is an apocalyptic number.

12613403 is a deficient number, since it is larger than the sum of its proper divisors (1251049).

12613403 is a wasteful number, since it uses less digits than its factorization.

12613403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104265 (or 104254 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 12613403 is about 3551.5353018096. The cubic root of 12613403 is about 232.7791567311.

It can be divided in two parts, 1261 and 3403, that added together give a palindrome (4664).

The spelling of 12613403 in words is "twelve million, six hundred thirteen thousand, four hundred three".