196988013 has 6 divisors (see below), whose sum is σ = 284538254. Its totient is φ = 131325336.

The previous prime is 196987997. The next prime is 196988017. The reversal of 196988013 is 310889691.

It can be written as a sum of positive squares in only one way, i.e., 193682889 + 3305124 = 13917^2 + 1818^2 .

It is not a de Polignac number, because 196988013 - 2⁴ = 196987997 is a prime.

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 196988013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196988017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10943770 + ... + 10943787.

Almost surely, 2^196988013 is an apocalyptic number.

It is an amenable number.

196988013 is a deficient number, since it is larger than the sum of its proper divisors (87550241).

196988013 is a wasteful number, since it uses less digits than its factorization.

196988013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21887563 (or 21887560 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 196988013 is about 14035.2418219281. The cubic root of 196988013 is about 581.8529847959.

The spelling of 196988013 in words is "one hundred ninety-six million, nine hundred eighty-eight thousand, thirteen".