13913530 has 8 divisors (see below), whose sum is σ = 25044372. Its totient is φ = 5565408.

The previous prime is 13913527. The next prime is 13913569. The reversal of 13913530 is 3531931.

It can be written as a sum of positive squares in 2 ways, for example, as 12383361 + 1530169 = 3519^2 + 1237^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13913495 and 13913504.

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, 695667 + ... + 695686.

Almost surely, 2^13913530 is an apocalyptic number.

13913530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13913530 is a deficient number, since it is larger than the sum of its proper divisors (11130842).

13913530 is a wasteful number, since it uses less digits than its factorization.

13913530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391360.

The product of its (nonzero) digits is 1215, while the sum is 25.

The square root of 13913530 is about 3730.0844494462. The cubic root of 13913530 is about 240.5169989267.

The spelling of 13913530 in words is "thirteen million, nine hundred thirteen thousand, five hundred thirty".