1194805152 has 144 divisors (see below), whose sum is σ = 3614679432. Its totient is φ = 373063680.

The previous prime is 1194805141. The next prime is 1194805207. The reversal of 1194805152 is 2515084911.

It can be written as a sum of positive squares in 4 ways, for example, as 813618576 + 381186576 = 28524^2 + 19524^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1355752 + ... + 1356632.

Almost surely, 2^1194805152 is an apocalyptic number.

1194805152 is a gapful number since it is divisible by the number (12) 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 1194805152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807339716).

1194805152 is an abundant number, since it is smaller than the sum of its proper divisors (2419874280).

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

1194805152 is a wasteful number, since it uses less digits than its factorization.

1194805152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1180 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 1194805152 is about 34565.9536538485. The cubic root of 1194805152 is about 1061.1229206007.

The spelling of 1194805152 in words is "one billion, one hundred ninety-four million, eight hundred five thousand, one hundred fifty-two".