133684870 has 32 divisors (see below), whose sum is σ = 263018016. Its totient is φ = 48518400.

The previous prime is 133684847. The next prime is 133684877. The reversal of 133684870 is 78486331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133684877) 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 in 15 ways as a sum of consecutive naturals, for example, 82912 + ... + 84508.

It is an arithmetic number, because the mean of its divisors is an integer number (8219313).

Almost surely, 2^133684870 is an apocalyptic number.

133684870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133684870 is a deficient number, since it is larger than the sum of its proper divisors (129333146).

133684870 is a wasteful number, since it uses less digits than its factorization.

133684870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376.

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

The square root of 133684870 is about 11562.2173478966. The cubic root of 133684870 is about 511.3215373659.

The spelling of 133684870 in words is "one hundred thirty-three million, six hundred eighty-four thousand, eight hundred seventy".