1151105500 has 48 divisors (see below), whose sum is σ = 2646352800. Its totient is φ = 436204800.

The previous prime is 1151105491. The next prime is 1151105531. The reversal of 1151105500 is 55011511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51085 + ... + 70084.

It is an arithmetic number, because the mean of its divisors is an integer number (55132350).

Almost surely, 2^1151105500 is an apocalyptic number.

1151105500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151105500 is an abundant number, since it is smaller than the sum of its proper divisors (1495247300).

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

1151105500 is a wasteful number, since it uses less digits than its factorization.

1151105500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121207 (or 121195 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 1151105500 is about 33927.9457085159. The cubic root of 1151105500 is about 1048.0251618281.

The spelling of 1151105500 in words is "one billion, one hundred fifty-one million, one hundred five thousand, five hundred".