133369871 has 2 divisors, whose sum is σ = 133369872. Its totient is φ = 133369870.

The previous prime is 133369861. The next prime is 133369897. The reversal of 133369871 is 178963331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133369871 - 2⁶ = 133369807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133369861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66684935 + 66684936.

It is an arithmetic number, because the mean of its divisors is an integer number (66684936).

Almost surely, 2^133369871 is an apocalyptic number.

133369871 is a deficient number, since it is larger than the sum of its proper divisors (1).

133369871 is an equidigital number, since it uses as much as digits as its factorization.

133369871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 41.

The square root of 133369871 is about 11548.5874027952. The cubic root of 133369871 is about 510.9196159314.

The spelling of 133369871 in words is "one hundred thirty-three million, three hundred sixty-nine thousand, eight hundred seventy-one".