1100156000 has 48 divisors (see below), whose sum is σ = 2703093120. Its totient is φ = 440060800.

The previous prime is 1100155981. The next prime is 1100156011. The reversal of 1100156000 is 6510011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133520 + ... + 141519.

It is an arithmetic number, because the mean of its divisors is an integer number (56314440).

Almost surely, 2^1100156000 is an apocalyptic number.

1100156000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100156000 is an abundant number, since it is smaller than the sum of its proper divisors (1602937120).

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

1100156000 is an equidigital number, since it uses as much as digits as its factorization.

1100156000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275064 (or 275046 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1100156000 is about 33168.5996086660. The cubic root of 1100156000 is about 1032.3289118461.

Adding to 1100156000 its reverse (6510011), we get a palindrome (1106666011).

The spelling of 1100156000 in words is "one billion, one hundred million, one hundred fifty-six thousand".