195738 has 32 divisors (see below), whose sum is σ = 440640. Its totient is φ = 57600.

The previous prime is 195737. The next prime is 195739. The reversal of 195738 is 837591.

It is an interprime number because it is at equal distance from previous prime (195737) and next prime (195739).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 195699 and 195708.

It is not an unprimeable number, because it can be changed into a prime (195731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1888 + ... + 1988.

It is an arithmetic number, because the mean of its divisors is an integer number (13770).

2¹⁹⁵⁷³⁸ is an apocalyptic number.

195738 is an abundant number, since it is smaller than the sum of its proper divisors (244902).

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

195738 is a wasteful number, since it uses less digits than its factorization.

195738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142.

The product of its digits is 7560, while the sum is 33.

The square root of 195738 is about 442.4228746347. The cubic root of 195738 is about 58.0619631096.

The spelling of 195738 in words is "one hundred ninety-five thousand, seven hundred thirty-eight".