1194895985 has 4 divisors (see below), whose sum is σ = 1433875188. Its totient is φ = 955916784.

The previous prime is 1194895963. The next prime is 1194895987. The reversal of 1194895985 is 5895984911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 434680801 + 760215184 = 20849^2 + 27572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1194895985 - 2¹⁸ = 1194633841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194895987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119489594 + ... + 119489603.

It is an arithmetic number, because the mean of its divisors is an integer number (358468797).

Almost surely, 2^1194895985 is an apocalyptic number.

It is an amenable number.

1194895985 is a deficient number, since it is larger than the sum of its proper divisors (238979203).

1194895985 is an equidigital number, since it uses as much as digits as its factorization.

1194895985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238979202.

The product of its digits is 4665600, while the sum is 59.

The square root of 1194895985 is about 34567.2675373684. The cubic root of 1194895985 is about 1061.1498099323.

The spelling of 1194895985 in words is "one billion, one hundred ninety-four million, eight hundred ninety-five thousand, nine hundred eighty-five".