133763776 has 56 divisors (see below), whose sum is σ = 277794720. Its totient is φ = 63823872.

The previous prime is 133763767. The next prime is 133763779. The reversal of 133763776 is 677367331.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (133763779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179661 + ... + 180403.

It is an arithmetic number, because the mean of its divisors is an integer number (4960620).

Almost surely, 2^133763776 is an apocalyptic number.

133763776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133763776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138897360).

133763776 is an abundant number, since it is smaller than the sum of its proper divisors (144030944).

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

133763776 is an equidigital number, since it uses as much as digits as its factorization.

133763776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 871 counting only the distinct ones).

The product of its digits is 333396, while the sum is 43.

The square root of 133763776 is about 11565.6290793022. The cubic root of 133763776 is about 511.4221181867.

The spelling of 133763776 in words is "one hundred thirty-three million, seven hundred sixty-three thousand, seven hundred seventy-six".