194841855 has 80 divisors (see below), whose sum is σ = 392736960. Its totient is φ = 91694592.

The previous prime is 194841853. The next prime is 194841859. The reversal of 194841855 is 558148491.

It is a happy number.

It is not a de Polignac number, because 194841855 - 2¹ = 194841853 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 194841855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194841853) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120291 + ... + 121899.

It is an arithmetic number, because the mean of its divisors is an integer number (4909212).

Almost surely, 2^194841855 is an apocalyptic number.

194841855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

194841855 is an abundant number, since it is smaller than the sum of its proper divisors (197895105).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194841855 is a wasteful number, since it uses less digits than its factorization.

194841855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1653 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 194841855 is about 13958.5763958937. The cubic root of 194841855 is about 579.7321940412.

The spelling of 194841855 in words is "one hundred ninety-four million, eight hundred forty-one thousand, eight hundred fifty-five".