11502138 has 8 divisors (see below), whose sum is σ = 23004288. Its totient is φ = 3834044.

The previous prime is 11502137. The next prime is 11502143. The reversal of 11502138 is 83120511.

11502138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

11502138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11502131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 958506 + ... + 958517.

It is an arithmetic number, because the mean of its divisors is an integer number (2875536).

Almost surely, 2^11502138 is an apocalyptic number.

11502138 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.

11502138 is a wasteful number, since it uses less digits than its factorization.

11502138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917028.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 11502138 is about 3391.4802078149. The cubic root of 11502138 is about 225.7318588724.

Adding to 11502138 its reverse (83120511), we get a palindrome (94622649).

The spelling of 11502138 in words is "eleven million, five hundred two thousand, one hundred thirty-eight".