133543117 has 2 divisors, whose sum is σ = 133543118. Its totient is φ = 133543116.

The previous prime is 133543097. The next prime is 133543139. The reversal of 133543117 is 711345331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116079076 + 17464041 = 10774^2 + 4179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133543117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133543217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66771558 + 66771559.

It is an arithmetic number, because the mean of its divisors is an integer number (66771559).

Almost surely, 2^133543117 is an apocalyptic number.

It is an amenable number.

133543117 is a deficient number, since it is larger than the sum of its proper divisors (1).

133543117 is an equidigital number, since it uses as much as digits as its factorization.

133543117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 133543117 is about 11556.0857127316. The cubic root of 133543117 is about 511.1407465366.

Adding to 133543117 its reverse (711345331), we get a palindrome (844888448).

It can be divided in two parts, 13354 and 3117, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 133543117 in words is "one hundred thirty-three million, five hundred forty-three thousand, one hundred seventeen".