133474471 has 4 divisors (see below), whose sum is σ = 143741752. Its totient is φ = 123207192.

The previous prime is 133474423. The next prime is 133474477. The reversal of 133474471 is 174474331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133474471 - 2⁹ = 133473959 is a prime.

It is a super-3 number, since 3×133474471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133474477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5133621 + ... + 5133646.

It is an arithmetic number, because the mean of its divisors is an integer number (35935438).

Almost surely, 2^133474471 is an apocalyptic number.

133474471 is a deficient number, since it is larger than the sum of its proper divisors (10267281).

133474471 is a wasteful number, since it uses less digits than its factorization.

133474471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10267280.

The product of its digits is 28224, while the sum is 34.

The square root of 133474471 is about 11553.1152075966. The cubic root of 133474471 is about 511.0531499053.

The spelling of 133474471 in words is "one hundred thirty-three million, four hundred seventy-four thousand, four hundred seventy-one".