13541403 has 4 divisors (see below), whose sum is σ = 18055208. Its totient is φ = 9027600.

The previous prime is 13541399. The next prime is 13541413. The reversal of 13541403 is 30414531.

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

It is not a de Polignac number, because 13541403 - 2² = 13541399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13541403.

It is not an unprimeable number, because it can be changed into a prime (13541413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2256898 + ... + 2256903.

It is an arithmetic number, because the mean of its divisors is an integer number (4513802).

Almost surely, 2^13541403 is an apocalyptic number.

13541403 is a deficient number, since it is larger than the sum of its proper divisors (4513805).

13541403 is an equidigital number, since it uses as much as digits as its factorization.

13541403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4513804.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 13541403 is about 3679.8645355502. The cubic root of 13541403 is about 238.3533285043.

Adding to 13541403 its reverse (30414531), we get a palindrome (43955934).

The spelling of 13541403 in words is "thirteen million, five hundred forty-one thousand, four hundred three".