193161308 has 12 divisors (see below), whose sum is σ = 338215080. Its totient is φ = 96528432.

The previous prime is 193161281. The next prime is 193161313. The reversal of 193161308 is 803161391.

It is a super-2 number, since 2×193161308² = 74622581816541728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 4043 + ... + 20066.

It is an arithmetic number, because the mean of its divisors is an integer number (28184590).

Almost surely, 2^193161308 is an apocalyptic number.

It is an amenable number.

193161308 is a deficient number, since it is larger than the sum of its proper divisors (145053772).

193161308 is a wasteful number, since it uses less digits than its factorization.

193161308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26116 (or 26114 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 193161308 is about 13898.2483788426. The cubic root of 193161308 is about 578.0606131284.

The spelling of 193161308 in words is "one hundred ninety-three million, one hundred sixty-one thousand, three hundred eight".