1155252036 has 48 divisors (see below), whose sum is σ = 2794430016. Its totient is φ = 371159424.

The previous prime is 1155252019. The next prime is 1155252067. The reversal of 1155252036 is 6302525511.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1155251994 and 1155252012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35350 + ... + 59666.

It is an arithmetic number, because the mean of its divisors is an integer number (58217292).

Almost surely, 2^1155252036 is an apocalyptic number.

It is an amenable number.

1155252036 is an abundant number, since it is smaller than the sum of its proper divisors (1639177980).

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

1155252036 is a wasteful number, since it uses less digits than its factorization.

1155252036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24468 (or 24466 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 1155252036 is about 33988.9987495954. The cubic root of 1155252036 is about 1049.2820597853.

Adding to 1155252036 its reverse (6302525511), we get a palindrome (7457777547).

The spelling of 1155252036 in words is "one billion, one hundred fifty-five million, two hundred fifty-two thousand, thirty-six".