133763471 has 4 divisors (see below), whose sum is σ = 133786632. Its totient is φ = 133740312.

The previous prime is 133763447. The next prime is 133763489. The reversal of 133763471 is 174367331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 133763471 - 2¹⁴ = 133747087 is a prime.

It is a super-3 number, since 3×133763471³ (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 (133763431) 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, 4925 + ... + 17081.

It is an arithmetic number, because the mean of its divisors is an integer number (33446658).

Almost surely, 2^133763471 is an apocalyptic number.

133763471 is a deficient number, since it is larger than the sum of its proper divisors (23161).

133763471 is a wasteful number, since it uses less digits than its factorization.

133763471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23160.

The product of its digits is 31752, while the sum is 35.

The square root of 133763471 is about 11565.6158936738. The cubic root of 133763471 is about 511.4217294819.

The spelling of 133763471 in words is "one hundred thirty-three million, seven hundred sixty-three thousand, four hundred seventy-one".