195650090 has 16 divisors (see below), whose sum is σ = 356414688. Its totient is φ = 77316816.

The previous prime is 195650089. The next prime is 195650099. The reversal of 195650090 is 90056591.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195650090.

It is not an unprimeable number, because it can be changed into a prime (195650099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117032 + ... + 118691.

It is an arithmetic number, because the mean of its divisors is an integer number (22275918).

Almost surely, 2^195650090 is an apocalyptic number.

195650090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195650090 is a deficient number, since it is larger than the sum of its proper divisors (160764598).

195650090 is a wasteful number, since it uses less digits than its factorization.

195650090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235813.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 195650090 is about 13987.4976318139. The cubic root of 195650090 is about 580.5326953022.

The spelling of 195650090 in words is "one hundred ninety-five million, six hundred fifty thousand, ninety".