133664708 has 6 divisors (see below), whose sum is σ = 233913246. Its totient is φ = 66832352.

The previous prime is 133664701. The next prime is 133664723. The reversal of 133664708 is 807466331.

It can be written as a sum of positive squares in only one way, i.e., 76177984 + 57486724 = 8728^2 + 7582^2 .

It is not an unprimeable number, because it can be changed into a prime (133664701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16708085 + ... + 16708092.

It is an arithmetic number, because the mean of its divisors is an integer number (38985541).

Almost surely, 2^133664708 is an apocalyptic number.

It is an amenable number.

133664708 is a deficient number, since it is larger than the sum of its proper divisors (100248538).

133664708 is a wasteful number, since it uses less digits than its factorization.

133664708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33416181 (or 33416179 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 133664708 is about 11561.3454234358. The cubic root of 133664708 is about 511.2958306844.

The spelling of 133664708 in words is "one hundred thirty-three million, six hundred sixty-four thousand, seven hundred eight".