191560 has 16 divisors (see below), whose sum is σ = 431100. Its totient is φ = 76608.

The previous prime is 191551. The next prime is 191561. The reversal of 191560 is 65191.

191560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 171396 + 20164 = 414^2 + 142^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (191561) by changing a digit.

191560 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2355 + ... + 2434.

2¹⁹¹⁵⁶⁰ is an apocalyptic number.

191560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

191560 is an abundant number, since it is smaller than the sum of its proper divisors (239540).

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

191560 is a wasteful number, since it uses less digits than its factorization.

191560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800 (or 4796 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 191560 is about 437.6756790136. The cubic root of 191560 is about 57.6458803689.

The spelling of 191560 in words is "one hundred ninety-one thousand, five hundred sixty".