193021133 has 4 divisors (see below), whose sum is σ = 203180160. Its totient is φ = 182862108.

The previous prime is 193021121. The next prime is 193021139. The reversal of 193021133 is 331120391.

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 not a de Polignac number, because 193021133 - 2⁶ = 193021069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 193021099 and 193021108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193021139) 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, 5079485 + ... + 5079522.

It is an arithmetic number, because the mean of its divisors is an integer number (50795040).

Almost surely, 2^193021133 is an apocalyptic number.

It is an amenable number.

193021133 is a deficient number, since it is larger than the sum of its proper divisors (10159027).

193021133 is a wasteful number, since it uses less digits than its factorization.

193021133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10159026.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 193021133 is about 13893.2045619432. The cubic root of 193021133 is about 577.9207485838.

The spelling of 193021133 in words is "one hundred ninety-three million, twenty-one thousand, one hundred thirty-three".