194427145 has 16 divisors (see below), whose sum is σ = 254812032. Its totient is φ = 141240960.

The previous prime is 194427061. The next prime is 194427151. The reversal of 194427145 is 541724491.

194427145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194427145 - 2⁷ = 194427017 is a prime.

It is a Duffinian number.

194427145 is a Rhonda number in base 10.

Its product of digits (40320) is a multiple of the sum of its prime divisors (4032).

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, 70309 + ... + 73021.

It is an arithmetic number, because the mean of its divisors is an integer number (15925752).

Almost surely, 2^194427145 is an apocalyptic number.

It is an amenable number.

194427145 is a deficient number, since it is larger than the sum of its proper divisors (60384887).

194427145 is a wasteful number, since it uses less digits than its factorization.

194427145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032.

The product of its digits is 40320, while the sum is 37.

The square root of 194427145 is about 13943.7134580427. The cubic root of 194427145 is about 579.3205926868.

The spelling of 194427145 in words is "one hundred ninety-four million, four hundred twenty-seven thousand, one hundred forty-five".