11312538 has 8 divisors (see below), whose sum is σ = 22625088. Its totient is φ = 3770844.

The previous prime is 11312537. The next prime is 11312549. The reversal of 11312538 is 83521311.

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

11312538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11312537) 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, 942706 + ... + 942717.

It is an arithmetic number, because the mean of its divisors is an integer number (2828136).

Almost surely, 2^11312538 is an apocalyptic number.

11312538 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.

11312538 is a wasteful number, since it uses less digits than its factorization.

11312538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885428.

The product of its digits is 720, while the sum is 24.

The square root of 11312538 is about 3363.4116607992. The cubic root of 11312538 is about 224.4846675144.

Adding to 11312538 its reverse (83521311), we get a palindrome (94833849).

The spelling of 11312538 in words is "eleven million, three hundred twelve thousand, five hundred thirty-eight".