1151055100 has 36 divisors (see below), whose sum is σ = 2689930264. Its totient is φ = 425004480.

The previous prime is 1151055097. The next prime is 1151055107. The reversal of 1151055100 is 15501511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151055107) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 441414 + ... + 444013.

Almost surely, 2^1151055100 is an apocalyptic number.

1151055100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151055100 is an abundant number, since it is smaller than the sum of its proper divisors (1538875164).

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

1151055100 is a wasteful number, since it uses less digits than its factorization.

1151055100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885454 (or 885447 counting only the distinct ones).

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

The square root of 1151055100 is about 33927.2029498454. The cubic root of 1151055100 is about 1048.0098660280.

Adding to 1151055100 its reverse (15501511), we get a palindrome (1166556611).

The spelling of 1151055100 in words is "one billion, one hundred fifty-one million, fifty-five thousand, one hundred".