133571089 has 2 divisors, whose sum is σ = 133571090. Its totient is φ = 133571088.

The previous prime is 133571069. The next prime is 133571101. The reversal of 133571089 is 980175331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130302225 + 3268864 = 11415^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 133571089 - 2²³ = 125182481 is a prime.

It is not a weakly prime, because it can be changed into another prime (133571059) 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 as a sum of consecutive naturals, namely, 66785544 + 66785545.

It is an arithmetic number, because the mean of its divisors is an integer number (66785545).

Almost surely, 2^133571089 is an apocalyptic number.

It is an amenable number.

133571089 is a deficient number, since it is larger than the sum of its proper divisors (1).

133571089 is an equidigital number, since it uses as much as digits as its factorization.

133571089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 133571089 is about 11557.2959207593. The cubic root of 133571089 is about 511.1764319669.

The spelling of 133571089 in words is "one hundred thirty-three million, five hundred seventy-one thousand, eighty-nine".