195059 has 4 divisors (see below), whose sum is σ = 196680. Its totient is φ = 193440.

The previous prime is 195053. The next prime is 195071. The reversal of 195059 is 950591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950591 = 29 ⋅32779.

It is a cyclic number.

It is not a de Polignac number, because 195059 - 2⁴ = 195043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195053) 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 3 ways as a sum of consecutive naturals, for example, 614 + ... + 875.

It is an arithmetic number, because the mean of its divisors is an integer number (49170).

2¹⁹⁵⁰⁵⁹ is an apocalyptic number.

195059 is a deficient number, since it is larger than the sum of its proper divisors (1621).

195059 is a wasteful number, since it uses less digits than its factorization.

195059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 2025, while the sum is 29.

The square root of 195059 is about 441.6548426090. The cubic root of 195059 is about 57.9947478399.

The spelling of 195059 in words is "one hundred ninety-five thousand, fifty-nine".