193474149 has 16 divisors (see below), whose sum is σ = 282054720. Its totient is φ = 116991360.

The previous prime is 193474139. The next prime is 193474159. The reversal of 193474149 is 941474391.

It is an interprime number because it is at equal distance from previous prime (193474139) and next prime (193474159).

It is not a de Polignac number, because 193474149 - 2⁴ = 193474133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 193474149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193474139) 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, 8667 + ... + 21495.

It is an arithmetic number, because the mean of its divisors is an integer number (17628420).

Almost surely, 2^193474149 is an apocalyptic number.

It is an amenable number.

193474149 is a deficient number, since it is larger than the sum of its proper divisors (88580571).

193474149 is a wasteful number, since it uses less digits than its factorization.

193474149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13300.

The product of its digits is 108864, while the sum is 42.

The square root of 193474149 is about 13909.4985172004. The cubic root of 193474149 is about 578.3725174133.

The spelling of 193474149 in words is "one hundred ninety-three million, four hundred seventy-four thousand, one hundred forty-nine".