1155034056 has 96 divisors (see below), whose sum is σ = 3312146880. Its totient is φ = 334773120.

The previous prime is 1155034039. The next prime is 1155034057. The reversal of 1155034056 is 6504305511.

It is a super-2 number, since 2×1155034056² = 2668207341039622272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1155034057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58146 + ... + 75438.

It is an arithmetic number, because the mean of its divisors is an integer number (34501530).

Almost surely, 2^1155034056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155034056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1656073440).

1155034056 is an abundant number, since it is smaller than the sum of its proper divisors (2157112824).

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

1155034056 is a wasteful number, since it uses less digits than its factorization.

1155034056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17347 (or 17332 counting only the distinct ones).

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

The square root of 1155034056 is about 33985.7919725288. The cubic root of 1155034056 is about 1049.2160606546.

Adding to 1155034056 its reverse (6504305511), we get a palindrome (7659339567).

The spelling of 1155034056 in words is "one billion, one hundred fifty-five million, thirty-four thousand, fifty-six".