1129278150 has 576 divisors, whose sum is σ = 4289725440. Its totient is φ = 205286400.

The previous prime is 1129278097. The next prime is 1129278197. The reversal of 1129278150 is 518729211.

It is a happy number.

1129278150 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 10360296 + ... + 10360404.

It is an arithmetic number, because the mean of its divisors is an integer number (7447440).

Almost surely, 2^1129278150 is an apocalyptic number.

1129278150 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 1129278150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144862720).

1129278150 is an abundant number, since it is smaller than the sum of its proper divisors (3160447290).

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

1129278150 is a wasteful number, since it uses less digits than its factorization.

1129278150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 36.

The square root of 1129278150 is about 33604.7340415008. The cubic root of 1129278150 is about 1041.3586010252.

The spelling of 1129278150 in words is "one billion, one hundred twenty-nine million, two hundred seventy-eight thousand, one hundred fifty".