193002739091 has 4 divisors (see below), whose sum is σ = 193227423000. Its totient is φ = 192778055184.

The previous prime is 193002739067. The next prime is 193002739093. The reversal of 193002739091 is 190937200391.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-193002739091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193002739093) 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, 112340666 + ... + 112342383.

It is an arithmetic number, because the mean of its divisors is an integer number (48306855750).

Almost surely, 2^193002739091 is an apocalyptic number.

193002739091 is a deficient number, since it is larger than the sum of its proper divisors (224683909).

193002739091 is an equidigital number, since it uses as much as digits as its factorization.

193002739091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224683908.

The product of its (nonzero) digits is 91854, while the sum is 44.

The spelling of 193002739091 in words is "one hundred ninety-three billion, two million, seven hundred thirty-nine thousand, ninety-one".