13658138 has 8 divisors (see below), whose sum is σ = 22063188. Its totient is φ = 6303744.

The previous prime is 13658111. The next prime is 13658171. The reversal of 13658138 is 83185631.

It can be written as a sum of positive squares in 2 ways, for example, as 9467929 + 4190209 = 3077^2 + 2047^2 .

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 = 13658098 and 13658107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262631 + ... + 262682.

Almost surely, 2^13658138 is an apocalyptic number.

13658138 is a deficient number, since it is larger than the sum of its proper divisors (8405050).

13658138 is a wasteful number, since it uses less digits than its factorization.

13658138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525328.

The product of its digits is 17280, while the sum is 35.

The square root of 13658138 is about 3695.6918161557. The cubic root of 13658138 is about 239.0362858721.

The spelling of 13658138 in words is "thirteen million, six hundred fifty-eight thousand, one hundred thirty-eight".