1131440214 has 8 divisors (see below), whose sum is σ = 2262880440. Its totient is φ = 377146736.

The previous prime is 1131440203. The next prime is 1131440221. The reversal of 1131440214 is 4120441311.

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

1131440214 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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, 94286679 + ... + 94286690.

It is an arithmetic number, because the mean of its divisors is an integer number (282860055).

Almost surely, 2^1131440214 is an apocalyptic number.

1131440214 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.

1131440214 is a wasteful number, since it uses less digits than its factorization.

1131440214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188573374.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1131440214 is about 33636.8876978831. The cubic root of 1131440214 is about 1042.0227564434.

Adding to 1131440214 its reverse (4120441311), we get a palindrome (5251881525).

The spelling of 1131440214 in words is "one billion, one hundred thirty-one million, four hundred forty thousand, two hundred fourteen".