194661 has 12 divisors (see below), whose sum is σ = 288288. Its totient is φ = 126504.

The previous prime is 194659. The next prime is 194671. The reversal of 194661 is 166491.

It is not a de Polignac number, because 194661 - 2¹ = 194659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2¹⁹⁴⁶⁶¹ is an apocalyptic number.

It is an amenable number.

194661 is a deficient number, since it is larger than the sum of its proper divisors (93627).

194661 is a wasteful number, since it uses less digits than its factorization.

194661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 549 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 194661 is about 441.2040344331. The cubic root of 194661 is about 57.9552766606.

The spelling of 194661 in words is "one hundred ninety-four thousand, six hundred sixty-one".