133402471 has 2 divisors, whose sum is σ = 133402472. Its totient is φ = 133402470.

The previous prime is 133402459. The next prime is 133402513. The reversal of 133402471 is 174204331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133402471 - 2⁷ = 133402343 is a prime.

It is a super-3 number, since 3×133402471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133402441) 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, 66701235 + 66701236.

It is an arithmetic number, because the mean of its divisors is an integer number (66701236).

Almost surely, 2^133402471 is an apocalyptic number.

133402471 is a deficient number, since it is larger than the sum of its proper divisors (1).

133402471 is an equidigital number, since it uses as much as digits as its factorization.

133402471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 133402471 is about 11549.9987445887. The cubic root of 133402471 is about 510.9612410812.

It can be divided in two parts, 13340 and 2471, that multiplied together give a triangular number (32963140 = T₈₁₁₉).

The spelling of 133402471 in words is "one hundred thirty-three million, four hundred two thousand, four hundred seventy-one".