133695785 has 4 divisors (see below), whose sum is σ = 160434948. Its totient is φ = 106956624.

The previous prime is 133695781. The next prime is 133695791. The reversal of 133695785 is 587596331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 587596331 = 7 ⋅83942333.

It can be written as a sum of positive squares in 2 ways, for example, as 86471401 + 47224384 = 9299^2 + 6872^2 .

It is a cyclic number.

It is not a de Polignac number, because 133695785 - 2² = 133695781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133695781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13369574 + ... + 13369583.

It is an arithmetic number, because the mean of its divisors is an integer number (40108737).

Almost surely, 2^133695785 is an apocalyptic number.

It is an amenable number.

133695785 is a deficient number, since it is larger than the sum of its proper divisors (26739163).

133695785 is an equidigital number, since it uses as much as digits as its factorization.

133695785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26739162.

The product of its digits is 680400, while the sum is 47.

The square root of 133695785 is about 11562.6893498009. The cubic root of 133695785 is about 511.3354529838.

The spelling of 133695785 in words is "one hundred thirty-three million, six hundred ninety-five thousand, seven hundred eighty-five".