193490093 has 4 divisors (see below), whose sum is σ = 193695360. Its totient is φ = 193284828.

The previous prime is 193490047. The next prime is 193490113. The reversal of 193490093 is 390094391.

193490093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193490093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193490593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101213 + ... + 103106.

It is an arithmetic number, because the mean of its divisors is an integer number (48423840).

Almost surely, 2^193490093 is an apocalyptic number.

It is an amenable number.

193490093 is a deficient number, since it is larger than the sum of its proper divisors (205267).

193490093 is an equidigital number, since it uses as much as digits as its factorization.

193490093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205266.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 193490093 is about 13910.0716389241. The cubic root of 193490093 is about 578.3884046660.

The spelling of 193490093 in words is "one hundred ninety-three million, four hundred ninety thousand, ninety-three".