133313597 has 2 divisors, whose sum is σ = 133313598. Its totient is φ = 133313596.

The previous prime is 133313569. The next prime is 133313617. The reversal of 133313597 is 795313331.

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., 133310116 + 3481 = 11546^2 + 59^2 .

It is a cyclic number.

It is not a de Polignac number, because 133313597 - 2⁶ = 133313533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133313797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66656798 + 66656799.

It is an arithmetic number, because the mean of its divisors is an integer number (66656799).

Almost surely, 2^133313597 is an apocalyptic number.

It is an amenable number.

133313597 is a deficient number, since it is larger than the sum of its proper divisors (1).

133313597 is an equidigital number, since it uses as much as digits as its factorization.

133313597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25515, while the sum is 35.

The square root of 133313597 is about 11546.1507438626. The cubic root of 133313597 is about 510.8477467879.

The spelling of 133313597 in words is "one hundred thirty-three million, three hundred thirteen thousand, five hundred ninety-seven".