194230985 has 8 divisors (see below), whose sum is σ = 251006280. Its totient is φ = 143432064.

The previous prime is 194230973. The next prime is 194230987. The reversal of 194230985 is 589032491.

It can be written as a sum of positive squares in 4 ways, for example, as 37405456 + 156825529 = 6116^2 + 12523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 194230985 - 2⁴ = 194230969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194230987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1494020 + ... + 1494149.

It is an arithmetic number, because the mean of its divisors is an integer number (31375785).

Almost surely, 2^194230985 is an apocalyptic number.

It is an amenable number.

194230985 is a deficient number, since it is larger than the sum of its proper divisors (56775295).

194230985 is a wasteful number, since it uses less digits than its factorization.

194230985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2988187.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 194230985 is about 13936.6776887463. The cubic root of 194230985 is about 579.1256991765.

The spelling of 194230985 in words is "one hundred ninety-four million, two hundred thirty thousand, nine hundred eighty-five".