133641337 has 2 divisors, whose sum is σ = 133641338. Its totient is φ = 133641336.

The previous prime is 133641331. The next prime is 133641359. The reversal of 133641337 is 733146331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105083001 + 28558336 = 10251^2 + 5344^2 .

It is a cyclic number.

It is not a de Polignac number, because 133641337 - 2³ = 133641329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133641299 and 133641308.

It is not a weakly prime, because it can be changed into another prime (133641331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66820668 + 66820669.

It is an arithmetic number, because the mean of its divisors is an integer number (66820669).

Almost surely, 2^133641337 is an apocalyptic number.

It is an amenable number.

133641337 is a deficient number, since it is larger than the sum of its proper divisors (1).

133641337 is an equidigital number, since it uses as much as digits as its factorization.

133641337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 31.

The square root of 133641337 is about 11560.3346404851. The cubic root of 133641337 is about 511.2660292717.

Adding to 133641337 its reverse (733146331), we get a palindrome (866787668).

The spelling of 133641337 in words is "one hundred thirty-three million, six hundred forty-one thousand, three hundred thirty-seven".