192242191 has 4 divisors (see below), whose sum is σ = 198443584. Its totient is φ = 186040800.

The previous prime is 192242123. The next prime is 192242213. The reversal of 192242191 is 191242291.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 191242291 = 263 ⋅727157.

It is a cyclic number.

It is not a de Polignac number, because 192242191 - 2¹³ = 192233999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 6201361 = 192242191 / (1 + 9 + 2 + 2 + 4 + 2 + 1 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192242291) 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, 3100650 + ... + 3100711.

It is an arithmetic number, because the mean of its divisors is an integer number (49610896).

Almost surely, 2^192242191 is an apocalyptic number.

192242191 is a deficient number, since it is larger than the sum of its proper divisors (6201393).

192242191 is an equidigital number, since it uses as much as digits as its factorization.

192242191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201392.

The product of its digits is 2592, while the sum is 31.

The square root of 192242191 is about 13865.1430212602. The cubic root of 192242191 is about 577.1422955523.

The spelling of 192242191 in words is "one hundred ninety-two million, two hundred forty-two thousand, one hundred ninety-one".