197133813 has 12 divisors (see below), whose sum is σ = 284871808. Its totient is φ = 131365800.

The previous prime is 197133773. The next prime is 197133847. The reversal of 197133813 is 318331791.

It is not a de Polignac number, because 197133813 - 2⁶ = 197133749 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 (197133613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33756 + ... + 39162.

Almost surely, 2^197133813 is an apocalyptic number.

It is an amenable number.

197133813 is a deficient number, since it is larger than the sum of its proper divisors (87737995).

197133813 is a wasteful number, since it uses less digits than its factorization.

197133813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464 (or 9461 counting only the distinct ones).

The product of its digits is 13608, while the sum is 36.

The square root of 197133813 is about 14040.4349291608. The cubic root of 197133813 is about 581.9965015555.

The spelling of 197133813 in words is "one hundred ninety-seven million, one hundred thirty-three thousand, eight hundred thirteen".