194001861 has 8 divisors (see below), whose sum is σ = 258836544. Its totient is φ = 129250880.

The previous prime is 194001833. The next prime is 194001893. The reversal of 194001861 is 168100491.

194001861 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 194001861 - 2⁷ = 194001733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194000861) 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, 15300 + ... + 24941.

It is an arithmetic number, because the mean of its divisors is an integer number (32354568).

Almost surely, 2^194001861 is an apocalyptic number.

It is an amenable number.

194001861 is a deficient number, since it is larger than the sum of its proper divisors (64834683).

194001861 is a wasteful number, since it uses less digits than its factorization.

194001861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41851.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 194001861 is about 13928.4550830306. The cubic root of 194001861 is about 578.8978882751.

The spelling of 194001861 in words is "one hundred ninety-four million, one thousand, eight hundred sixty-one".