13021454 has 4 divisors (see below), whose sum is σ = 19532184. Its totient is φ = 6510726.

The previous prime is 13021453. The next prime is 13021469. The reversal of 13021454 is 45412031.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13021451) 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 as a sum of consecutive naturals, namely, 3255362 + ... + 3255365.

It is an arithmetic number, because the mean of its divisors is an integer number (4883046).

Almost surely, 2^13021454 is an apocalyptic number.

13021454 is a deficient number, since it is larger than the sum of its proper divisors (6510730).

13021454 is an equidigital number, since it uses as much as digits as its factorization.

13021454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510729.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13021454 is about 3608.5251835064. The cubic root of 13021454 is about 235.2627452069.

Adding to 13021454 its reverse (45412031), we get a palindrome (58433485).

The spelling of 13021454 in words is "thirteen million, twenty-one thousand, four hundred fifty-four".