1131144424 has 8 divisors (see below), whose sum is σ = 2120895810. Its totient is φ = 565572208.

The previous prime is 1131144407. The next prime is 1131144431. The reversal of 1131144424 is 4244411311.

It can be written as a sum of positive squares in only one way, i.e., 824264100 + 306880324 = 28710^2 + 17518^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70696519 + ... + 70696534.

Almost surely, 2^1131144424 is an apocalyptic number.

It is an amenable number.

1131144424 is a deficient number, since it is larger than the sum of its proper divisors (989751386).

1131144424 is a wasteful number, since it uses less digits than its factorization.

1131144424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141393059 (or 141393055 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 1131144424 is about 33632.4906006082. The cubic root of 1131144424 is about 1041.9319439344.

Adding to 1131144424 its reverse (4244411311), we get a palindrome (5375555735).

The spelling of 1131144424 in words is "one billion, one hundred thirty-one million, one hundred forty-four thousand, four hundred twenty-four".