196559903 has 4 divisors (see below), whose sum is σ = 196690488. Its totient is φ = 196429320.

The previous prime is 196559897. The next prime is 196559911. The reversal of 196559903 is 309955691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 309955691 = 797 ⋅388903.

It is a cyclic number.

It is not a de Polignac number, because 196559903 - 2⁸ = 196559647 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 (196559983) 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, 63008 + ... + 66053.

It is an arithmetic number, because the mean of its divisors is an integer number (49172622).

Almost surely, 2^196559903 is an apocalyptic number.

196559903 is a deficient number, since it is larger than the sum of its proper divisors (130585).

196559903 is a wasteful number, since it uses less digits than its factorization.

196559903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130584.

The product of its (nonzero) digits is 328050, while the sum is 47.

The square root of 196559903 is about 14019.9822753098. The cubic root of 196559903 is about 581.4311693629.

The spelling of 196559903 in words is "one hundred ninety-six million, five hundred fifty-nine thousand, nine hundred three".