193108145 has 12 divisors (see below), whose sum is σ = 239452020. Its totient is φ = 149499360.

The previous prime is 193108099. The next prime is 193108159. The reversal of 193108145 is 541801391.

It can be written as a sum of positive squares in 2 ways, for example, as 26801329 + 166306816 = 5177^2 + 12896^2 .

It is not a de Polignac number, because 193108145 - 2⁶ = 193108081 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15290 + ... + 24899.

It is an arithmetic number, because the mean of its divisors is an integer number (19954335).

Almost surely, 2^193108145 is an apocalyptic number.

It is an amenable number.

193108145 is a deficient number, since it is larger than the sum of its proper divisors (46343875).

193108145 is an equidigital number, since it uses as much as digits as its factorization.

193108145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40256 (or 40225 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 193108145 is about 13896.3356680817. The cubic root of 193108145 is about 578.0075758397.

The spelling of 193108145 in words is "one hundred ninety-three million, one hundred eight thousand, one hundred forty-five".