195090 has 32 divisors (see below), whose sum is σ = 535680. Its totient is φ = 44544.

The previous prime is 195089. The next prime is 195103. The reversal of 195090 is 90591.

It is a happy number.

195090 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 195090.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255 + ... + 674.

It is an arithmetic number, because the mean of its divisors is an integer number (16740).

2¹⁹⁵⁰⁹⁰ is an apocalyptic number.

195090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195090 is an abundant number, since it is smaller than the sum of its proper divisors (340590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195090 is a wasteful number, since it uses less digits than its factorization.

195090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 195090 is about 441.6899364939. The cubic root of 195090 is about 57.9978199736.

The spelling of 195090 in words is "one hundred ninety-five thousand, ninety".