194427146 has 4 divisors (see below), whose sum is σ = 291640722. Its totient is φ = 97213572.

The previous prime is 194427061. The next prime is 194427151. The reversal of 194427146 is 641724491.

194427146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117180625 + 77246521 = 10825^2 + 8789^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48606785 + ... + 48606788.

Almost surely, 2^194427146 is an apocalyptic number.

194427146 is a deficient number, since it is larger than the sum of its proper divisors (97213576).

194427146 is an equidigital number, since it uses as much as digits as its factorization.

194427146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97213575.

The product of its digits is 48384, while the sum is 38.

The square root of 194427146 is about 13943.7134939011. The cubic root of 194427146 is about 579.3205936800.

The spelling of 194427146 in words is "one hundred ninety-four million, four hundred twenty-seven thousand, one hundred forty-six".