133568265 has 16 divisors (see below), whose sum is σ = 214351488. Its totient is φ = 71022336.

The previous prime is 133568251. The next prime is 133568293. The reversal of 133568265 is 562865331.

It is not a de Polignac number, because 133568265 - 2⁷ = 133568137 is a prime.

It is a super-2 number, since 2×133568265² = 35680962830220450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8157 + ... + 18266.

It is an arithmetic number, because the mean of its divisors is an integer number (13396968).

Almost surely, 2^133568265 is an apocalyptic number.

133568265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133568265 is a deficient number, since it is larger than the sum of its proper divisors (80783223).

133568265 is a wasteful number, since it uses less digits than its factorization.

133568265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26768.

The product of its digits is 129600, while the sum is 39.

The square root of 133568265 is about 11557.1737462063. The cubic root of 133568265 is about 511.1728294598.

The spelling of 133568265 in words is "one hundred thirty-three million, five hundred sixty-eight thousand, two hundred sixty-five".