195964 has 6 divisors (see below), whose sum is σ = 342944. Its totient is φ = 97980.

The previous prime is 195931. The next prime is 195967. The reversal of 195964 is 469591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195967) by changing a digit.

195964 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 24492 + ... + 24499.

2¹⁹⁵⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

195964 is a deficient number, since it is larger than the sum of its proper divisors (146980).

195964 is a wasteful number, since it uses less digits than its factorization.

195964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48995 (or 48993 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 195964 is about 442.6782127008. The cubic root of 195964 is about 58.0843007184.

It can be divided in two parts, 19596 and 4, that added together give a square (19600 = 140²).

The spelling of 195964 in words is "one hundred ninety-five thousand, nine hundred sixty-four".