195132959 has 4 divisors (see below), whose sum is σ = 223009104. Its totient is φ = 167256816.

The previous prime is 195132937. The next prime is 195132991. The reversal of 195132959 is 959231591.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 959231591 = 2659 ⋅360749.

It is a cyclic number.

It is not a de Polignac number, because 195132959 - 2¹⁶ = 195067423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195132929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13938062 + ... + 13938075.

It is an arithmetic number, because the mean of its divisors is an integer number (55752276).

Almost surely, 2^195132959 is an apocalyptic number.

195132959 is a deficient number, since it is larger than the sum of its proper divisors (27876145).

195132959 is an equidigital number, since it uses as much as digits as its factorization.

195132959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27876144.

The product of its digits is 109350, while the sum is 44.

The square root of 195132959 is about 13968.9999284129. Note that the first 4 decimals coincide. The cubic root of 195132959 is about 580.0207671914.

The spelling of 195132959 in words is "one hundred ninety-five million, one hundred thirty-two thousand, nine hundred fifty-nine".