13521363 has 8 divisors (see below), whose sum is σ = 18610176. Its totient is φ = 8723400.

The previous prime is 13521359. The next prime is 13521367. The reversal of 13521363 is 36312531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13521359) and next prime (13521367).

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

It is not a de Polignac number, because 13521363 - 2² = 13521359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13521367) 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 7 ways as a sum of consecutive naturals, for example, 72603 + ... + 72788.

It is an arithmetic number, because the mean of its divisors is an integer number (2326272).

Almost surely, 2^13521363 is an apocalyptic number.

13521363 is a deficient number, since it is larger than the sum of its proper divisors (5088813).

13521363 is a wasteful number, since it uses less digits than its factorization.

13521363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145425.

The product of its digits is 1620, while the sum is 24.

The square root of 13521363 is about 3677.1406010649. The cubic root of 13521363 is about 238.2356903012.

Adding to 13521363 its reverse (36312531), we get a palindrome (49833894).

The spelling of 13521363 in words is "thirteen million, five hundred twenty-one thousand, three hundred sixty-three".