133682305 has 16 divisors (see below), whose sum is σ = 170197200. Its totient is φ = 100452352.

The previous prime is 133682303. The next prime is 133682317. The reversal of 133682305 is 503286331.

It can be written as a sum of positive squares in 8 ways, for example, as 71824 + 133610481 = 268^2 + 11559^2 .

It is a cyclic number.

It is not a de Polignac number, because 133682305 - 2¹ = 133682303 is a prime.

It is a super-2 number, since 2×133682305² = 35741917340226050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133682303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51171 + ... + 53719.

It is an arithmetic number, because the mean of its divisors is an integer number (10637325).

Almost surely, 2^133682305 is an apocalyptic number.

It is an amenable number.

133682305 is a deficient number, since it is larger than the sum of its proper divisors (36514895).

133682305 is a wasteful number, since it uses less digits than its factorization.

133682305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 133682305 is about 11562.1064257340. The cubic root of 133682305 is about 511.3182671177.

The spelling of 133682305 in words is "one hundred thirty-three million, six hundred eighty-two thousand, three hundred five".