195280 has 20 divisors (see below), whose sum is σ = 454212. Its totient is φ = 78080.

The previous prime is 195277. The next prime is 195281. The reversal of 195280 is 82591.

It can be written as a sum of positive squares in 2 ways, for example, as 41616 + 153664 = 204^2 + 392^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141 + ... + 1300.

2¹⁹⁵²⁸⁰ is an apocalyptic number.

195280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195280 is an abundant number, since it is smaller than the sum of its proper divisors (258932).

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

195280 is a wasteful number, since it uses less digits than its factorization.

195280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2454 (or 2448 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 195280 is about 441.9049671592. The cubic root of 195280 is about 58.0166420734.

The spelling of 195280 in words is "one hundred ninety-five thousand, two hundred eighty".