133928764 has 6 divisors (see below), whose sum is σ = 234375344. Its totient is φ = 66964380.

The previous prime is 133928759. The next prime is 133928813. The reversal of 133928764 is 467829331.

It is a self number, because there is not a number n which added to its sum of digits gives 133928764.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16741092 + ... + 16741099.

Almost surely, 2^133928764 is an apocalyptic number.

It is an amenable number.

133928764 is a deficient number, since it is larger than the sum of its proper divisors (100446580).

133928764 is a wasteful number, since it uses less digits than its factorization.

133928764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33482195 (or 33482193 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 133928764 is about 11572.7595671905. The cubic root of 133928764 is about 511.6322992663.

It can be divided in two parts, 1339 and 28764, that added together give a palindrome (30103).

The spelling of 133928764 in words is "one hundred thirty-three million, nine hundred twenty-eight thousand, seven hundred sixty-four".