133343471 has 2 divisors, whose sum is σ = 133343472. Its totient is φ = 133343470.

The previous prime is 133343453. The next prime is 133343543. The reversal of 133343471 is 174343331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133343471 - 2¹⁴ = 133327087 is a prime.

It is a super-3 number, since 3×133343471³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133342471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66671735 + 66671736.

It is an arithmetic number, because the mean of its divisors is an integer number (66671736).

Almost surely, 2^133343471 is an apocalyptic number.

133343471 is a deficient number, since it is larger than the sum of its proper divisors (1).

133343471 is an equidigital number, since it uses as much as digits as its factorization.

133343471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 29.

The square root of 133343471 is about 11547.4443492922. Note that the first 3 decimals coincide. The cubic root of 133343471 is about 510.8859022502.

The spelling of 133343471 in words is "one hundred thirty-three million, three hundred forty-three thousand, four hundred seventy-one".