133288117 has 2 divisors, whose sum is σ = 133288118. Its totient is φ = 133288116.

The previous prime is 133288027. The next prime is 133288121. The reversal of 133288117 is 711882331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132503121 + 784996 = 11511^2 + 886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133288117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133288187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66644058 + 66644059.

It is an arithmetic number, because the mean of its divisors is an integer number (66644059).

Almost surely, 2^133288117 is an apocalyptic number.

It is an amenable number.

133288117 is a deficient number, since it is larger than the sum of its proper divisors (1).

133288117 is an equidigital number, since it uses as much as digits as its factorization.

133288117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 34.

The square root of 133288117 is about 11545.0472931037. The cubic root of 133288117 is about 510.8151988952.

The spelling of 133288117 in words is "one hundred thirty-three million, two hundred eighty-eight thousand, one hundred seventeen".