133037917 has 2 divisors, whose sum is σ = 133037918. Its totient is φ = 133037916.

The previous prime is 133037899. The next prime is 133037929. The reversal of 133037917 is 719730331.

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., 133033156 + 4761 = 11534^2 + 69^2 .

It is a cyclic number.

It is not a de Polignac number, because 133037917 - 2¹¹ = 133035869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133037987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66518958 + 66518959.

It is an arithmetic number, because the mean of its divisors is an integer number (66518959).

Almost surely, 2^133037917 is an apocalyptic number.

It is an amenable number.

133037917 is a deficient number, since it is larger than the sum of its proper divisors (1).

133037917 is an equidigital number, since it uses as much as digits as its factorization.

133037917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11907, while the sum is 34.

The square root of 133037917 is about 11534.2063879575. The cubic root of 133037917 is about 510.4953753958.

The spelling of 133037917 in words is "one hundred thirty-three million, thirty-seven thousand, nine hundred seventeen".