196808154 has 32 divisors (see below), whose sum is σ = 398146560. Its totient is φ = 64852272.

The previous prime is 196808149. The next prime is 196808221. The reversal of 196808154 is 451808691.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 305757 + ... + 306399.

It is an arithmetic number, because the mean of its divisors is an integer number (12442080).

Almost surely, 2^196808154 is an apocalyptic number.

196808154 is an abundant number, since it is smaller than the sum of its proper divisors (201338406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196808154 is a wasteful number, since it uses less digits than its factorization.

196808154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1154.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 196808154 is about 14028.8329521739. The cubic root of 196808154 is about 581.6758448081.

The spelling of 196808154 in words is "one hundred ninety-six million, eight hundred eight thousand, one hundred fifty-four".