194054493 has 16 divisors (see below), whose sum is σ = 264877056. Its totient is φ = 126314160.

The previous prime is 194054489. The next prime is 194054537. The reversal of 194054493 is 394450491.

It is not a de Polignac number, because 194054493 - 2² = 194054489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194054423) by changing a digit.

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, 67830 + ... + 70632.

It is an arithmetic number, because the mean of its divisors is an integer number (16554816).

Almost surely, 2^194054493 is an apocalyptic number.

It is an amenable number.

194054493 is a deficient number, since it is larger than the sum of its proper divisors (70822563).

194054493 is a wasteful number, since it uses less digits than its factorization.

194054493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 194054493 is about 13930.3443245312. The cubic root of 194054493 is about 578.9502345062.

The spelling of 194054493 in words is "one hundred ninety-four million, fifty-four thousand, four hundred ninety-three".