133593668 has 12 divisors (see below), whose sum is σ = 251772780. Its totient is φ = 61658592.

The previous prime is 133593653. The next prime is 133593679. The reversal of 133593668 is 866395331.

133593668 is nontrivially palindromic in base 6.

It can be written as a sum of positive squares in 2 ways, for example, as 44328964 + 89264704 = 6658^2 + 9448^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284503 + ... + 1284606.

It is an arithmetic number, because the mean of its divisors is an integer number (20981065).

Almost surely, 2^133593668 is an apocalyptic number.

It is an amenable number.

133593668 is a deficient number, since it is larger than the sum of its proper divisors (118179112).

133593668 is a wasteful number, since it uses less digits than its factorization.

133593668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569126 (or 2569124 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The square root of 133593668 is about 11558.2727083245. The cubic root of 133593668 is about 511.2052336147.

The spelling of 133593668 in words is "one hundred thirty-three million, five hundred ninety-three thousand, six hundred sixty-eight".