133616897 has 2 divisors, whose sum is σ = 133616898. Its totient is φ = 133616896.

The previous prime is 133616893. The next prime is 133616941. The reversal of 133616897 is 798616331.

It is an a-pointer prime, because the next prime (133616941) can be obtained adding 133616897 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101626561 + 31990336 = 10081^2 + 5656^2 .

It is a cyclic number.

It is not a de Polignac number, because 133616897 - 2² = 133616893 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133616893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66808448 + 66808449.

It is an arithmetic number, because the mean of its divisors is an integer number (66808449).

Almost surely, 2^133616897 is an apocalyptic number.

It is an amenable number.

133616897 is a deficient number, since it is larger than the sum of its proper divisors (1).

133616897 is an equidigital number, since it uses as much as digits as its factorization.

133616897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 133616897 is about 11559.2775293268. The cubic root of 133616897 is about 511.2348610124.

The spelling of 133616897 in words is "one hundred thirty-three million, six hundred sixteen thousand, eight hundred ninety-seven".