13400003 has 4 divisors (see below), whose sum is σ = 13419360. Its totient is φ = 13380648.

The previous prime is 13399999. The next prime is 13400027. The reversal of 13400003 is 30000431.

13400003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13400003 - 2² = 13399999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13400033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8600 + ... + 10037.

It is an arithmetic number, because the mean of its divisors is an integer number (3354840).

Almost surely, 2^13400003 is an apocalyptic number.

13400003 is a deficient number, since it is larger than the sum of its proper divisors (19357).

13400003 is an equidigital number, since it uses as much as digits as its factorization.

13400003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19356.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 13400003 is about 3660.6014533134. The cubic root of 13400003 is about 237.5207915316.

Adding to 13400003 its reverse (30000431), we get a palindrome (43400434).

The spelling of 13400003 in words is "thirteen million, four hundred thousand, three".