193608481 has 4 divisors (see below), whose sum is σ = 211209264. Its totient is φ = 176007700.

The previous prime is 193608473. The next prime is 193608497. The reversal of 193608481 is 184806391.

It is the 5681-st star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 193608481 - 2³ = 193608473 is a prime.

It is a super-2 number, since 2×193608481² = 74968487830254722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193608431) 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 3 ways as a sum of consecutive naturals, for example, 8800375 + ... + 8800396.

It is an arithmetic number, because the mean of its divisors is an integer number (52802316).

Almost surely, 2^193608481 is an apocalyptic number.

193608481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

193608481 is a deficient number, since it is larger than the sum of its proper divisors (17600783).

193608481 is a wasteful number, since it uses less digits than its factorization.

193608481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600782.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 193608481 is about 13914.3264659128. The cubic root of 193608481 is about 578.5063440132.

The spelling of 193608481 in words is "one hundred ninety-three million, six hundred eight thousand, four hundred eighty-one".