196959081 has 12 divisors (see below), whose sum is σ = 288656816. Its totient is φ = 119368920.

The previous prime is 196959079. The next prime is 196959101. The reversal of 196959081 is 180959691.

It is not a de Polignac number, because 196959081 - 2¹ = 196959079 is a prime.

It is a super-2 number, since 2×196959081² = 77585759176729122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 196959081.

It is not an unprimeable number, because it can be changed into a prime (196959001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270931 + ... + 271656.

Almost surely, 2^196959081 is an apocalyptic number.

196959081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

196959081 is a deficient number, since it is larger than the sum of its proper divisors (91697735).

196959081 is a wasteful number, since it uses less digits than its factorization.

196959081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542612 (or 542601 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 48.

The square root of 196959081 is about 14034.2110928972. The cubic root of 196959081 is about 581.8244974538.

The spelling of 196959081 in words is "one hundred ninety-six million, nine hundred fifty-nine thousand, eighty-one".