11471138 has 8 divisors (see below), whose sum is σ = 19664832. Its totient is φ = 4916196.

The previous prime is 11471129. The next prime is 11471167. The reversal of 11471138 is 83117411.

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

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, 409670 + ... + 409697.

It is an arithmetic number, because the mean of its divisors is an integer number (2458104).

Almost surely, 2^11471138 is an apocalyptic number.

11471138 is a deficient number, since it is larger than the sum of its proper divisors (8193694).

11471138 is an equidigital number, since it uses as much as digits as its factorization.

11471138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819376.

The product of its digits is 672, while the sum is 26.

The square root of 11471138 is about 3386.9068484386. The cubic root of 11471138 is about 225.5288825892.

Adding to 11471138 its reverse (83117411), we get a palindrome (94588549).

The spelling of 11471138 in words is "eleven million, four hundred seventy-one thousand, one hundred thirty-eight".