11658138 has 8 divisors (see below), whose sum is σ = 23316288. Its totient is φ = 3886044.

The previous prime is 11658133. The next prime is 11658167. The reversal of 11658138 is 83185611.

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

11658138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11658099 and 11658108.

It is not an unprimeable number, because it can be changed into a prime (11658131) 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 3 ways as a sum of consecutive naturals, for example, 971506 + ... + 971517.

It is an arithmetic number, because the mean of its divisors is an integer number (2914536).

Almost surely, 2^11658138 is an apocalyptic number.

11658138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11658138 is a wasteful number, since it uses less digits than its factorization.

11658138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943028.

The product of its digits is 5760, while the sum is 33.

The square root of 11658138 is about 3414.4015581065. The cubic root of 11658138 is about 226.7477905510.

Subtracting from 11658138 its product of digits (5760), we obtain a triangular number (11652378 = T₄₈₂₇).

The spelling of 11658138 in words is "eleven million, six hundred fifty-eight thousand, one hundred thirty-eight".