195244730 has 16 divisors (see below), whose sum is σ = 353228040. Its totient is φ = 77700672.

The previous prime is 195244697. The next prime is 195244757. The reversal of 195244730 is 37442591.

It is a Cunningham number, because it is equal to 13973²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 195244729 + 1 = 13973^2 + 1^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47585 + ... + 51524.

Almost surely, 2^195244730 is an apocalyptic number.

195244730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195244730 is a deficient number, since it is larger than the sum of its proper divisors (157983310).

195244730 is a wasteful number, since it uses less digits than its factorization.

195244730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99313.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 195244730 is about 13973.0000357833. Note that the first 4 decimals coincide. The cubic root of 195244730 is about 580.1314902038.

The spelling of 195244730 in words is "one hundred ninety-five million, two hundred forty-four thousand, seven hundred thirty".