196058221 has 4 divisors (see below), whose sum is σ = 196096032. Its totient is φ = 196020412.

The previous prime is 196058179. The next prime is 196058257. The reversal of 196058221 is 122850691.

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 196058221 - 2²¹ = 193961069 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 (196058921) 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, 9601 + ... + 22006.

It is an arithmetic number, because the mean of its divisors is an integer number (49024008).

Almost surely, 2^196058221 is an apocalyptic number.

It is an amenable number.

196058221 is a deficient number, since it is larger than the sum of its proper divisors (37811).

196058221 is an equidigital number, since it uses as much as digits as its factorization.

196058221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37810.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 196058221 is about 14002.0791670380. The cubic root of 196058221 is about 580.9360835321.

The spelling of 196058221 in words is "one hundred ninety-six million, fifty-eight thousand, two hundred twenty-one".