133473878 has 8 divisors (see below), whose sum is σ = 200701560. Its totient is φ = 66573360.

The previous prime is 133473859. The next prime is 133473887. The reversal of 133473878 is 878374331.

133473878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×133473878² = 35630552216717768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80768 + ... + 82403.

It is an arithmetic number, because the mean of its divisors is an integer number (25087695).

Almost surely, 2^133473878 is an apocalyptic number.

133473878 is a deficient number, since it is larger than the sum of its proper divisors (67227682).

133473878 is a wasteful number, since it uses less digits than its factorization.

133473878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163582.

The product of its digits is 338688, while the sum is 44.

The square root of 133473878 is about 11553.0895434944. The cubic root of 133473878 is about 511.0523930690.

The spelling of 133473878 in words is "one hundred thirty-three million, four hundred seventy-three thousand, eight hundred seventy-eight".