1151971200 has 384 divisors, whose sum is σ = 4300320000. Its totient is φ = 301086720.

The previous prime is 1151971181. The next prime is 1151971211. The reversal of 1151971200 is 21791511.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5788701 + ... + 5788899.

It is an arithmetic number, because the mean of its divisors is an integer number (11198750).

Almost surely, 2^1151971200 is an apocalyptic number.

1151971200 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 1151971200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150160000).

1151971200 is an abundant number, since it is smaller than the sum of its proper divisors (3148348800).

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

1151971200 is a wasteful number, since it uses less digits than its factorization.

1151971200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 27.

The square root of 1151971200 is about 33940.7012302339. The cubic root of 1151971200 is about 1048.2878218061.

The spelling of 1151971200 in words is "one billion, one hundred fifty-one million, nine hundred seventy-one thousand, two hundred".