194155 has 16 divisors (see below), whose sum is σ = 262080. Its totient is φ = 137088.

The previous prime is 194149. The next prime is 194167. The reversal of 194155 is 551491.

It is a cyclic number.

It is not a de Polignac number, because 194155 - 2⁷ = 194027 is a prime.

It is an Ulam number.

Its product of digits (900) is a multiple of the sum of its prime divisors (150).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (16380).

2¹⁹⁴¹⁵⁵ is an apocalyptic number.

194155 is a deficient number, since it is larger than the sum of its proper divisors (67925).

194155 is a wasteful number, since it uses less digits than its factorization.

194155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150.

The product of its digits is 900, while the sum is 25.

The square root of 194155 is about 440.6302304654. The cubic root of 194155 is about 57.9050169508.

The spelling of 194155 in words is "one hundred ninety-four thousand, one hundred fifty-five".