133570197 has 6 divisors (see below), whose sum is σ = 192934742. Its totient is φ = 89046792.

The previous prime is 133570189. The next prime is 133570211. The reversal of 133570197 is 791075331.

It can be written as a sum of positive squares in only one way, i.e., 132572196 + 998001 = 11514^2 + 999^2 .

It is not a de Polignac number, because 133570197 - 2³ = 133570189 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 (133570147) 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 5 ways as a sum of consecutive naturals, for example, 7420558 + ... + 7420575.

Almost surely, 2^133570197 is an apocalyptic number.

It is an amenable number.

133570197 is a deficient number, since it is larger than the sum of its proper divisors (59364545).

133570197 is a wasteful number, since it uses less digits than its factorization.

133570197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14841139 (or 14841136 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 36.

The square root of 133570197 is about 11557.2573303531. The cubic root of 133570197 is about 511.1752940700.

The spelling of 133570197 in words is "one hundred thirty-three million, five hundred seventy thousand, one hundred ninety-seven".