196222691 has 4 divisors (see below), whose sum is σ = 224254512. Its totient is φ = 168190872.

The previous prime is 196222669. The next prime is 196222693.

196222691 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 196222691 - 2²² = 192028387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196222693) 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, 14015900 + ... + 14015913.

It is an arithmetic number, because the mean of its divisors is an integer number (56063628).

Almost surely, 2^196222691 is an apocalyptic number.

196222691 is a deficient number, since it is larger than the sum of its proper divisors (28031821).

196222691 is an equidigital number, since it uses as much as digits as its factorization.

196222691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28031820.

The product of its digits is 23328, while the sum is 38.

The square root of 196222691 is about 14007.9509922044. The cubic root of 196222691 is about 581.0984840207.

The spelling of 196222691 in words is "one hundred ninety-six million, two hundred twenty-two thousand, six hundred ninety-one".