133929139 has 2 divisors, whose sum is σ = 133929140. Its totient is φ = 133929138.

The previous prime is 133929137. The next prime is 133929193. The reversal of 133929139 is 931929331.

Together with next prime (133929193) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133929139 - 2¹ = 133929137 is a prime.

Together with 133929137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (133929137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66964569 + 66964570.

It is an arithmetic number, because the mean of its divisors is an integer number (66964570).

Almost surely, 2^133929139 is an apocalyptic number.

133929139 is a deficient number, since it is larger than the sum of its proper divisors (1).

133929139 is an equidigital number, since it uses as much as digits as its factorization.

133929139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366, while the sum is 40.

The square root of 133929139 is about 11572.7757690193. The cubic root of 133929139 is about 511.6327767887.

The spelling of 133929139 in words is "one hundred thirty-three million, nine hundred twenty-nine thousand, one hundred thirty-nine".