133158031 has 2 divisors, whose sum is σ = 133158032. Its totient is φ = 133158030.

The previous prime is 133158019. The next prime is 133158041. The reversal of 133158031 is 130851331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133158031 - 2⁷ = 133157903 is a prime.

It is a super-2 number, since 2×133158031² = 35462122439593922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133157987 and 133158005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133158001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66579015 + 66579016.

It is an arithmetic number, because the mean of its divisors is an integer number (66579016).

Almost surely, 2^133158031 is an apocalyptic number.

133158031 is a deficient number, since it is larger than the sum of its proper divisors (1).

133158031 is an equidigital number, since it uses as much as digits as its factorization.

133158031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 133158031 is about 11539.4120734117. The cubic root of 133158031 is about 510.6489636823.

The spelling of 133158031 in words is "one hundred thirty-three million, one hundred fifty-eight thousand, thirty-one".