1153161056 has 48 divisors (see below), whose sum is σ = 2291814000. Its totient is φ = 571146240.

The previous prime is 1153161043. The next prime is 1153161059. The reversal of 1153161056 is 6501613511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153161059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2310695 + ... + 2311193.

It is an arithmetic number, because the mean of its divisors is an integer number (47746125).

Almost surely, 2^1153161056 is an apocalyptic number.

1153161056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1153161056 is a deficient number, since it is larger than the sum of its proper divisors (1138652944).

1153161056 is a wasteful number, since it uses less digits than its factorization.

1153161056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1153161056 is about 33958.2251597459. The cubic root of 1153161056 is about 1048.6486185450.

Adding to 1153161056 its reverse (6501613511), we get a palindrome (7654774567).

The spelling of 1153161056 in words is "one billion, one hundred fifty-three million, one hundred sixty-one thousand, fifty-six".