191292 has 24 divisors (see below), whose sum is σ = 470400. Its totient is φ = 60336.

The previous prime is 191281. The next prime is 191297. The reversal of 191292 is 292191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191297) by changing a digit.

191292 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192 + ... + 647.

It is an arithmetic number, because the mean of its divisors is an integer number (19600).

2¹⁹¹²⁹² is an apocalyptic number.

191292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191292 is an abundant number, since it is smaller than the sum of its proper divisors (279108).

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

191292 is a wasteful number, since it uses less digits than its factorization.

191292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 863 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 191292 is about 437.3694090812. The cubic root of 191292 is about 57.6189848685.

The spelling of 191292 in words is "one hundred ninety-one thousand, two hundred ninety-two".