195847090 has 16 divisors (see below), whose sum is σ = 354893400. Its totient is φ = 77812480.

The previous prime is 195847061. The next prime is 195847103. The reversal of 195847090 is 90748591.

It can be written as a sum of positive squares in 4 ways, for example, as 83338641 + 112508449 = 9129^2 + 10607^2 .

It is a super-2 number, since 2×195847090² = 76712165322936200, which contains 22 as substring.

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, 64231 + ... + 67210.

Almost surely, 2^195847090 is an apocalyptic number.

195847090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195847090 is a deficient number, since it is larger than the sum of its proper divisors (159046310).

195847090 is a wasteful number, since it uses less digits than its factorization.

195847090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131597.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 195847090 is about 13994.5378630379. The cubic root of 195847090 is about 580.7274759908.

The spelling of 195847090 in words is "one hundred ninety-five million, eight hundred forty-seven thousand, ninety".