133500268 has 18 divisors (see below), whose sum is σ = 256795868. Its totient is φ = 60681720.

The previous prime is 133500259. The next prime is 133500277. The reversal of 133500268 is 862005331.

It is an interprime number because it is at equal distance from previous prime (133500259) and next prime (133500277).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137430 + ... + 138397.

Almost surely, 2^133500268 is an apocalyptic number.

It is an amenable number.

133500268 is a deficient number, since it is larger than the sum of its proper divisors (123295600).

133500268 is a wasteful number, since it uses less digits than its factorization.

133500268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275853 (or 275840 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 133500268 is about 11554.2316057798. The cubic root of 133500268 is about 511.0860720283.

Adding to 133500268 its reverse (862005331), we get a palindrome (995505599).

The spelling of 133500268 in words is "one hundred thirty-three million, five hundred thousand, two hundred sixty-eight".