1131125552 has 40 divisors (see below), whose sum is σ = 2209977600. Its totient is φ = 560831040.

The previous prime is 1131125531. The next prime is 1131125561. The reversal of 1131125552 is 2555211311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1792277 + ... + 1792907.

It is an arithmetic number, because the mean of its divisors is an integer number (55249440).

Almost surely, 2^1131125552 is an apocalyptic number.

It is an amenable number.

1131125552 is a deficient number, since it is larger than the sum of its proper divisors (1078852048).

1131125552 is a wasteful number, since it uses less digits than its factorization.

1131125552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1395 counting only the distinct ones).

The product of its digits is 1500, while the sum is 26.

The square root of 1131125552 is about 33632.2100374031. The cubic root of 1131125552 is about 1041.9261493755.

Adding to 1131125552 its reverse (2555211311), we get a palindrome (3686336863).

It can be divided in two parts, 11311 and 25552, that added together give a palindrome (36863).

The spelling of 1131125552 in words is "one billion, one hundred thirty-one million, one hundred twenty-five thousand, five hundred fifty-two".