1150205100 has 72 divisors (see below), whose sum is σ = 3630475968. Its totient is φ = 278836800.

The previous prime is 1150205039. The next prime is 1150205129. The reversal of 1150205100 is 15020511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1150205100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170974 + ... + 177573.

Almost surely, 2^1150205100 is an apocalyptic number.

1150205100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150205100 is an abundant number, since it is smaller than the sum of its proper divisors (2480270868).

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

1150205100 is a wasteful number, since it uses less digits than its factorization.

1150205100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348575 (or 348568 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1150205100 is about 33914.6738153266. The cubic root of 1150205100 is about 1047.7518338540.

Adding to 1150205100 its reverse (15020511), we get a palindrome (1165225611).

The spelling of 1150205100 in words is "one billion, one hundred fifty million, two hundred five thousand, one hundred".