196749331 has 4 divisors (see below), whose sum is σ = 196828200. Its totient is φ = 196670464.

The previous prime is 196749323. The next prime is 196749359. The reversal of 196749331 is 133947691.

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 196749331 - 2³ = 196749323 is a prime.

It is a super-2 number, since 2×196749331² = 77420598497895122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196749361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35566 + ... + 40723.

It is an arithmetic number, because the mean of its divisors is an integer number (49207050).

Almost surely, 2^196749331 is an apocalyptic number.

196749331 is a deficient number, since it is larger than the sum of its proper divisors (78869).

196749331 is an equidigital number, since it uses as much as digits as its factorization.

196749331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78868.

The product of its digits is 122472, while the sum is 43.

The square root of 196749331 is about 14026.7362918107. The cubic root of 196749331 is about 581.6178876436.

The spelling of 196749331 in words is "one hundred ninety-six million, seven hundred forty-nine thousand, three hundred thirty-one".