194304145 has 16 divisors (see below), whose sum is σ = 266796288. Its totient is φ = 133076160.

The previous prime is 194304053. The next prime is 194304151. The reversal of 194304145 is 541403491.

It is not a de Polignac number, because 194304145 - 2²³ = 185915537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30975 + ... + 36715.

It is an arithmetic number, because the mean of its divisors is an integer number (16674768).

Almost surely, 2^194304145 is an apocalyptic number.

It is an amenable number.

194304145 is a deficient number, since it is larger than the sum of its proper divisors (72492143).

194304145 is an equidigital number, since it uses as much as digits as its factorization.

194304145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 194304145 is about 13939.3021704818. The cubic root of 194304145 is about 579.1984021624.

The spelling of 194304145 in words is "one hundred ninety-four million, three hundred four thousand, one hundred forty-five".