133917629 has 2 divisors, whose sum is σ = 133917630. Its totient is φ = 133917628.

The previous prime is 133917611. The next prime is 133917671. The reversal of 133917629 is 926719331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99460729 + 34456900 = 9973^2 + 5870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133917629 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133917229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66958814 + 66958815.

It is an arithmetic number, because the mean of its divisors is an integer number (66958815).

Almost surely, 2^133917629 is an apocalyptic number.

It is an amenable number.

133917629 is a deficient number, since it is larger than the sum of its proper divisors (1).

133917629 is an equidigital number, since it uses as much as digits as its factorization.

133917629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 133917629 is about 11572.2784705519. The cubic root of 133917629 is about 511.6181196299.

The spelling of 133917629 in words is "one hundred thirty-three million, nine hundred seventeen thousand, six hundred twenty-nine".