1139140224 has 48 divisors (see below), whose sum is σ = 3277997970. Its totient is φ = 379713024.

The previous prime is 1139140217. The next prime is 1139140241. The reversal of 1139140224 is 4220419311.

It is a happy number.

1139140224 is a `hidden beast` number, since 11 + 391 + 40 + 224 = 666.

It can be written as a sum of positive squares in only one way, i.e., 716097600 + 423042624 = 26760^2 + 20568^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 493267 + ... + 495570.

Almost surely, 2^1139140224 is an apocalyptic number.

It is an amenable number.

1139140224 is an abundant number, since it is smaller than the sum of its proper divisors (2138857746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1139140224 is an equidigital number, since it uses as much as digits as its factorization.

1139140224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988857 (or 988842 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1139140224 is about 33751.1514470247. The cubic root of 1139140224 is about 1044.3812409552.

Adding to 1139140224 its reverse (4220419311), we get a palindrome (5359559535).

It can be divided in two parts, 11391 and 40224, that added together give a palindrome (51615).

The spelling of 1139140224 in words is "one billion, one hundred thirty-nine million, one hundred forty thousand, two hundred twenty-four".