13154321 has 8 divisors (see below), whose sum is σ = 13789440. Its totient is φ = 12524512.

The previous prime is 13154303. The next prime is 13154347. The reversal of 13154321 is 12345131.

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

It is not a de Polignac number, because 13154321 - 2⁶ = 13154257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13154293 and 13154302.

It is not an unprimeable number, because it can be changed into a prime (13154521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4301 + ... + 6693.

It is an arithmetic number, because the mean of its divisors is an integer number (1723680).

Almost surely, 2^13154321 is an apocalyptic number.

It is an amenable number.

13154321 is a deficient number, since it is larger than the sum of its proper divisors (635119).

13154321 is a wasteful number, since it uses less digits than its factorization.

13154321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its digits is 360, while the sum is 20.

The square root of 13154321 is about 3626.8886114685. Note that the first 3 decimals coincide. The cubic root of 13154321 is about 236.0602223502.

Adding to 13154321 its reverse (12345131), we get a palindrome (25499452).

The spelling of 13154321 in words is "thirteen million, one hundred fifty-four thousand, three hundred twenty-one".