11545438 has 4 divisors (see below), whose sum is σ = 17318160. Its totient is φ = 5772718.

The previous prime is 11545433. The next prime is 11545439. The reversal of 11545438 is 83454511.

11545438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11545438² = 266594277223688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2886358 + ... + 2886361.

It is an arithmetic number, because the mean of its divisors is an integer number (4329540).

Almost surely, 2^11545438 is an apocalyptic number.

11545438 is a deficient number, since it is larger than the sum of its proper divisors (5772722).

11545438 is an equidigital number, since it uses as much as digits as its factorization.

11545438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772721.

The product of its digits is 9600, while the sum is 31.

The square root of 11545438 is about 3397.8578545902. The cubic root of 11545438 is about 226.0147613508.

Adding to 11545438 its reverse (83454511), we get a palindrome (94999949).

The spelling of 11545438 in words is "eleven million, five hundred forty-five thousand, four hundred thirty-eight".