133780164 has 24 divisors (see below), whose sum is σ = 356747328. Its totient is φ = 38222880.

The previous prime is 133780151. The next prime is 133780183. The reversal of 133780164 is 461087331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796227 + ... + 796394.

It is an arithmetic number, because the mean of its divisors is an integer number (14864472).

Almost surely, 2^133780164 is an apocalyptic number.

133780164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

133780164 is an abundant number, since it is smaller than the sum of its proper divisors (222967164).

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

133780164 is a wasteful number, since it uses less digits than its factorization.

133780164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592635 (or 1592633 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 133780164 is about 11566.3375361434. The cubic root of 133780164 is about 511.4430028728.

The spelling of 133780164 in words is "one hundred thirty-three million, seven hundred eighty thousand, one hundred sixty-four".