193568081 has 12 divisors (see below), whose sum is σ = 228346560. Its totient is φ = 163575720.

The previous prime is 193568071. The next prime is 193568087. The reversal of 193568081 is 180865391.

193568081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 193568081 - 2⁶ = 193568017 is a prime.

It is a super-2 number, since 2×193568081² = 74937203964045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193568087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24341 + ... + 31298.

It is an arithmetic number, because the mean of its divisors is an integer number (19028880).

Almost surely, 2^193568081 is an apocalyptic number.

It is an amenable number.

193568081 is a deficient number, since it is larger than the sum of its proper divisors (34778479).

193568081 is an equidigital number, since it uses as much as digits as its factorization.

193568081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55724 (or 55717 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 193568081 is about 13912.8746490436. The cubic root of 193568081 is about 578.4661025217.

The spelling of 193568081 in words is "one hundred ninety-three million, five hundred sixty-eight thousand, eighty-one".