1115128552 has 8 divisors (see below), whose sum is σ = 2090866050. Its totient is φ = 557564272.

The previous prime is 1115128541. The next prime is 1115128591. The reversal of 1115128552 is 2558215111.

It can be written as a sum of positive squares in only one way, i.e., 826332516 + 288796036 = 28746^2 + 16994^2 .

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, 69695527 + ... + 69695542.

Almost surely, 2^1115128552 is an apocalyptic number.

It is an amenable number.

1115128552 is a deficient number, since it is larger than the sum of its proper divisors (975737498).

1115128552 is a wasteful number, since it uses less digits than its factorization.

1115128552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139391075 (or 139391071 counting only the distinct ones).

The product of its digits is 4000, while the sum is 31.

The square root of 1115128552 is about 33393.5405729911. The cubic root of 1115128552 is about 1036.9909794520.

The spelling of 1115128552 in words is "one billion, one hundred fifteen million, one hundred twenty-eight thousand, five hundred fifty-two".