197663013 has 12 divisors (see below), whose sum is σ = 285943788. Its totient is φ = 131576640.

The previous prime is 197663003. The next prime is 197663017. The reversal of 197663013 is 310366791.

197663013 is a `hidden beast` number, since 1 + 9 + 7 + 6 + 630 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 193265604 + 4397409 = 13902^2 + 2097^2 .

It is not a de Polignac number, because 197663013 - 2⁵ = 197662981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197663017) 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, 10128 + ... + 22313.

It is an arithmetic number, because the mean of its divisors is an integer number (23828649).

Almost surely, 2^197663013 is an apocalyptic number.

It is an amenable number.

197663013 is a deficient number, since it is larger than the sum of its proper divisors (88280775).

197663013 is a wasteful number, since it uses less digits than its factorization.

197663013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33124 (or 33121 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 197663013 is about 14059.2678685627. The cubic root of 197663013 is about 582.5168204786.

The spelling of 197663013 in words is "one hundred ninety-seven million, six hundred sixty-three thousand, thirteen".