133587229 has 2 divisors, whose sum is σ = 133587230. Its totient is φ = 133587228.

The previous prime is 133587221. The next prime is 133587247. The reversal of 133587229 is 922785331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122544900 + 11042329 = 11070^2 + 3323^2 .

It is a cyclic number.

It is not a de Polignac number, because 133587229 - 2³ = 133587221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133587191 and 133587200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133587221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66793614 + 66793615.

It is an arithmetic number, because the mean of its divisors is an integer number (66793615).

Almost surely, 2^133587229 is an apocalyptic number.

It is an amenable number.

133587229 is a deficient number, since it is larger than the sum of its proper divisors (1).

133587229 is an equidigital number, since it uses as much as digits as its factorization.

133587229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 40.

The square root of 133587229 is about 11557.9941598878. The cubic root of 133587229 is about 511.1970203926.

The spelling of 133587229 in words is "one hundred thirty-three million, five hundred eighty-seven thousand, two hundred twenty-nine".