196810541 has 4 divisors (see below), whose sum is σ = 196838784. Its totient is φ = 196782300.

The previous prime is 196810487. The next prime is 196810543. The reversal of 196810541 is 145018691.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-196810541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196810543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4646 + ... + 20376.

It is an arithmetic number, because the mean of its divisors is an integer number (49209696).

Almost surely, 2^196810541 is an apocalyptic number.

It is an amenable number.

196810541 is a deficient number, since it is larger than the sum of its proper divisors (28243).

196810541 is a wasteful number, since it uses less digits than its factorization.

196810541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28242.

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 196810541 is about 14028.9180267047. The cubic root of 196810541 is about 581.6781964292.

The spelling of 196810541 in words is "one hundred ninety-six million, eight hundred ten thousand, five hundred forty-one".