133161341 has 2 divisors, whose sum is σ = 133161342. Its totient is φ = 133161340.

The previous prime is 133161331. The next prime is 133161349. The reversal of 133161341 is 143161331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97101316 + 36060025 = 9854^2 + 6005^2 .

It is an emirp because it is prime and its reverse (143161331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 133161341 - 2²⁶ = 66052477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133161349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66580670 + 66580671.

It is an arithmetic number, because the mean of its divisors is an integer number (66580671).

Almost surely, 2^133161341 is an apocalyptic number.

It is an amenable number.

133161341 is a deficient number, since it is larger than the sum of its proper divisors (1).

133161341 is an equidigital number, since it uses as much as digits as its factorization.

133161341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 133161341 is about 11539.5554940388. Note that the first 3 decimals coincide. The cubic root of 133161341 is about 510.6531948304.

The spelling of 133161341 in words is "one hundred thirty-three million, one hundred sixty-one thousand, three hundred forty-one".