133478680 has 16 divisors (see below), whose sum is σ = 300327120. Its totient is φ = 53391456.

The previous prime is 133478663. The next prime is 133478699. The reversal of 133478680 is 86874331.

133478680 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 3336967 = 133478680 / (1 + 3 + 3 + 4 + 7 + 8 + 6 + 8 + 0).

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, 1668444 + ... + 1668523.

It is an arithmetic number, because the mean of its divisors is an integer number (18770445).

Almost surely, 2^133478680 is an apocalyptic number.

133478680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133478680 is an abundant number, since it is smaller than the sum of its proper divisors (166848440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133478680 is a wasteful number, since it uses less digits than its factorization.

133478680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3336978 (or 3336974 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 133478680 is about 11553.2973648219. The cubic root of 133478680 is about 511.0585217193.

The spelling of 133478680 in words is "one hundred thirty-three million, four hundred seventy-eight thousand, six hundred eighty".