133171007 has 2 divisors, whose sum is σ = 133171008. Its totient is φ = 133171006.

The previous prime is 133171001. The next prime is 133171021. The reversal of 133171007 is 700171331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133171007 - 2¹⁰ = 133169983 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133171001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66585503 + 66585504.

It is an arithmetic number, because the mean of its divisors is an integer number (66585504).

Almost surely, 2^133171007 is an apocalyptic number.

133171007 is a deficient number, since it is larger than the sum of its proper divisors (1).

133171007 is an equidigital number, since it uses as much as digits as its factorization.

133171007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 441, while the sum is 23.

The square root of 133171007 is about 11539.9743067305. The cubic root of 133171007 is about 510.6655504043.

The spelling of 133171007 in words is "one hundred thirty-three million, one hundred seventy-one thousand, seven".