13198403 has 4 divisors (see below), whose sum is σ = 13384368. Its totient is φ = 13012440.

The previous prime is 13198379. The next prime is 13198429. The reversal of 13198403 is 30489131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30489131 = 643 ⋅47417.

It is a cyclic number.

It is not a de Polignac number, because 13198403 - 2⁸ = 13198147 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13198453) 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, 92876 + ... + 93017.

It is an arithmetic number, because the mean of its divisors is an integer number (3346092).

Almost surely, 2^13198403 is an apocalyptic number.

13198403 is a deficient number, since it is larger than the sum of its proper divisors (185965).

13198403 is an equidigital number, since it uses as much as digits as its factorization.

13198403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185964.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 13198403 is about 3632.9606383775. The cubic root of 13198403 is about 236.3236187990.

The spelling of 13198403 in words is "thirteen million, one hundred ninety-eight thousand, four hundred three".