192661 has 8 divisors (see below), whose sum is σ = 233280. Its totient is φ = 155328.

The previous prime is 192637. The next prime is 192667. The reversal of 192661 is 166291.

192661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 192661 - 2⁵ = 192629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691 + ... + 928.

It is an arithmetic number, because the mean of its divisors is an integer number (29160).

2¹⁹²⁶⁶¹ is an apocalyptic number.

It is an amenable number.

192661 is a deficient number, since it is larger than the sum of its proper divisors (40619).

192661 is a wasteful number, since it uses less digits than its factorization.

192661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643.

The product of its digits is 648, while the sum is 25.

The square root of 192661 is about 438.9316575505. The cubic root of 192661 is about 57.7561102460.

The spelling of 192661 in words is "one hundred ninety-two thousand, six hundred sixty-one".