13001403 has 8 divisors (see below), whose sum is σ = 17364816. Its totient is φ = 8652800.

The previous prime is 13001389. The next prime is 13001407. The reversal of 13001403 is 30410031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13001403 - 2⁸ = 13001147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13001407) 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 7 ways as a sum of consecutive naturals, for example, 1458 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (2170602).

Almost surely, 2^13001403 is an apocalyptic number.

13001403 is a deficient number, since it is larger than the sum of its proper divisors (4363413).

13001403 is an equidigital number, since it uses as much as digits as its factorization.

13001403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7405.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13001403 is about 3605.7458313087. The cubic root of 13001403 is about 235.1419272436.

Adding to 13001403 its reverse (30410031), we get a palindrome (43411434).

The spelling of 13001403 in words is "thirteen million, one thousand, four hundred three".