13621514 has 8 divisors (see below), whose sum is σ = 20512548. Its totient is φ = 6784000.

The previous prime is 13621481. The next prime is 13621523. The reversal of 13621514 is 41512631.

It can be written as a sum of positive squares in 2 ways, for example, as 12780625 + 840889 = 3575^2 + 917^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 13621514.

It is an unprimeable number.

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, 12737 + ... + 13764.

Almost surely, 2^13621514 is an apocalyptic number.

13621514 is a deficient number, since it is larger than the sum of its proper divisors (6891034).

13621514 is a wasteful number, since it uses less digits than its factorization.

13621514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26760.

The product of its digits is 720, while the sum is 23.

The square root of 13621514 is about 3690.7335314271. The cubic root of 13621514 is about 238.8224377478.

The spelling of 13621514 in words is "thirteen million, six hundred twenty-one thousand, five hundred fourteen".