1145778600 has 192 divisors, whose sum is σ = 3696192000. Its totient is φ = 293299200.

The previous prime is 1145778583. The next prime is 1145778607. The reversal of 1145778600 is 68775411.

It is not an unprimeable number, because it can be changed into a prime (1145778607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4259266 + ... + 4259534.

It is an arithmetic number, because the mean of its divisors is an integer number (19251000).

Almost surely, 2^1145778600 is an apocalyptic number.

1145778600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145778600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1848096000).

1145778600 is an abundant number, since it is smaller than the sum of its proper divisors (2550413400).

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

1145778600 is a wasteful number, since it uses less digits than its factorization.

1145778600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 1145778600 is about 33849.3515447490. The cubic root of 1145778600 is about 1046.4060345185.

The spelling of 1145778600 in words is "one billion, one hundred forty-five million, seven hundred seventy-eight thousand, six hundred".