133335761 has 12 divisors (see below), whose sum is σ = 150663168. Its totient is φ = 117724464.

The previous prime is 133335751. The next prime is 133335781. The reversal of 133335761 is 167533331.

It is not a de Polignac number, because 133335761 - 2¹⁸ = 133073617 is a prime.

It is a super-2 number, since 2×133335761² = 35556850322898242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133335721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13265 + ... + 21038.

It is an arithmetic number, because the mean of its divisors is an integer number (12555264).

Almost surely, 2^133335761 is an apocalyptic number.

It is an amenable number.

133335761 is a deficient number, since it is larger than the sum of its proper divisors (17327407).

133335761 is a wasteful number, since it uses less digits than its factorization.

133335761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34352 (or 34339 counting only the distinct ones).

The product of its digits is 17010, while the sum is 32.

The square root of 133335761 is about 11547.1105043643. The cubic root of 133335761 is about 510.8760554833.

The spelling of 133335761 in words is "one hundred thirty-three million, three hundred thirty-five thousand, seven hundred sixty-one".