191059 has 6 divisors (see below), whose sum is σ = 210140. Its totient is φ = 173580.

The previous prime is 191057. The next prime is 191071. The reversal of 191059 is 950191.

It is not a de Polignac number, because 191059 - 2¹ = 191057 is a prime.

It is a Duffinian number.

191059 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (191057) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 669 + ... + 910.

2¹⁹¹⁰⁵⁹ is an apocalyptic number.

191059 is a deficient number, since it is larger than the sum of its proper divisors (19081).

191059 is a wasteful number, since it uses less digits than its factorization.

191059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1590 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 191059 is about 437.1029626987. The cubic root of 191059 is about 57.5955814190.

The spelling of 191059 in words is "one hundred ninety-one thousand, fifty-nine".