13421033 has 4 divisors (see below), whose sum is σ = 13478868. Its totient is φ = 13363200.

The previous prime is 13421021. The next prime is 13421039. The reversal of 13421033 is 33012431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33012431 = 5119 ⋅6449.

It can be written as a sum of positive squares in 2 ways, for example, as 9684544 + 3736489 = 3112^2 + 1933^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421033 - 2¹⁴ = 13404649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13421039) 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 3 ways as a sum of consecutive naturals, for example, 28568 + ... + 29033.

It is an arithmetic number, because the mean of its divisors is an integer number (3369717).

Almost surely, 2^13421033 is an apocalyptic number.

It is an amenable number.

13421033 is a deficient number, since it is larger than the sum of its proper divisors (57835).

13421033 is an equidigital number, since it uses as much as digits as its factorization.

13421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57834.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 13421033 is about 3663.4728059588. The cubic root of 13421033 is about 237.6449818380.

Adding to 13421033 its reverse (33012431), we get a palindrome (46433464).

The spelling of 13421033 in words is "thirteen million, four hundred twenty-one thousand, thirty-three".