1155040052 has 6 divisors (see below), whose sum is σ = 2021320098. Its totient is φ = 577520024.

The previous prime is 1155040049. The next prime is 1155040093. The reversal of 1155040052 is 2500405511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 893053456 + 261986596 = 29884^2 + 16186^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144380003 + ... + 144380010.

It is an arithmetic number, because the mean of its divisors is an integer number (336886683).

Almost surely, 2^1155040052 is an apocalyptic number.

It is an amenable number.

1155040052 is a deficient number, since it is larger than the sum of its proper divisors (866280046).

1155040052 is a wasteful number, since it uses less digits than its factorization.

1155040052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288760017 (or 288760015 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 1155040052 is about 33985.8801857477. The cubic root of 1155040052 is about 1049.2178762110.

Adding to 1155040052 its reverse (2500405511), we get a palindrome (3655445563).

The spelling of 1155040052 in words is "one billion, one hundred fifty-five million, forty thousand, fifty-two".