133071771 has 16 divisors (see below), whose sum is σ = 203016704. Its totient is φ = 75950784.

The previous prime is 133071769. The next prime is 133071781. The reversal of 133071771 is 177170331.

It is not a de Polignac number, because 133071771 - 2¹ = 133071769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133071781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17031 + ... + 23583.

It is an arithmetic number, because the mean of its divisors is an integer number (12688544).

Almost surely, 2^133071771 is an apocalyptic number.

133071771 is a deficient number, since it is larger than the sum of its proper divisors (69944933).

133071771 is an equidigital number, since it uses as much as digits as its factorization.

133071771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7530.

The product of its (nonzero) digits is 3087, while the sum is 30.

The square root of 133071771 is about 11535.6738424767. The cubic root of 133071771 is about 510.5386734397.

The spelling of 133071771 in words is "one hundred thirty-three million, seventy-one thousand, seven hundred seventy-one".