133018197 has 8 divisors (see below), whose sum is σ = 191000544. Its totient is φ = 81857328.

The previous prime is 133018187. The next prime is 133018199. The reversal of 133018197 is 791810331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133018197 - 2¹⁸ = 132756053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133018199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1705323 + ... + 1705400.

It is an arithmetic number, because the mean of its divisors is an integer number (23875068).

Almost surely, 2^133018197 is an apocalyptic number.

It is an amenable number.

133018197 is a deficient number, since it is larger than the sum of its proper divisors (57982347).

133018197 is a wasteful number, since it uses less digits than its factorization.

133018197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410739.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 133018197 is about 11533.3515076928. The cubic root of 133018197 is about 510.4701508421.

The spelling of 133018197 in words is "one hundred thirty-three million, eighteen thousand, one hundred ninety-seven".