1115553150 has 144 divisors (see below), whose sum is σ = 3145624560. Its totient is φ = 283046400.

The previous prime is 1115553113. The next prime is 1115553151. The reversal of 1115553150 is 513555111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115553151) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 952065 + ... + 953235.

It is an arithmetic number, because the mean of its divisors is an integer number (21844615).

Almost surely, 2^1115553150 is an apocalyptic number.

1115553150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115553150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1572812280).

1115553150 is an abundant number, since it is smaller than the sum of its proper divisors (2030071410).

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

1115553150 is a wasteful number, since it uses less digits than its factorization.

1115553150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1283 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 27.

The square root of 1115553150 is about 33399.8974549324. The cubic root of 1115553150 is about 1037.1225781582.

The spelling of 1115553150 in words is "one billion, one hundred fifteen million, five hundred fifty-three thousand, one hundred fifty".