133913764 has 24 divisors (see below), whose sum is σ = 243867960. Its totient is φ = 64264704.

The previous prime is 133913737. The next prime is 133913789. The reversal of 133913764 is 467319331.

133913764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15539364 + 118374400 = 3942^2 + 10880^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16732 + ... + 23404.

It is an arithmetic number, because the mean of its divisors is an integer number (10161165).

Almost surely, 2^133913764 is an apocalyptic number.

It is an amenable number.

133913764 is a deficient number, since it is larger than the sum of its proper divisors (109954196).

133913764 is a wasteful number, since it uses less digits than its factorization.

133913764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6879 (or 6877 counting only the distinct ones).

The product of its digits is 40824, while the sum is 37.

The square root of 133913764 is about 11572.1114754396. Note that the first 3 decimals coincide. The cubic root of 133913764 is about 511.6131976415.

The spelling of 133913764 in words is "one hundred thirty-three million, nine hundred thirteen thousand, seven hundred sixty-four".