133810745 has 4 divisors (see below), whose sum is σ = 160572900. Its totient is φ = 107048592.

The previous prime is 133810741. The next prime is 133810751. The reversal of 133810745 is 547018331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28686736 + 105124009 = 5356^2 + 10253^2 .

It is a cyclic number.

It is not a de Polignac number, because 133810745 - 2² = 133810741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133810741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13381070 + ... + 13381079.

It is an arithmetic number, because the mean of its divisors is an integer number (40143225).

Almost surely, 2^133810745 is an apocalyptic number.

It is an amenable number.

133810745 is a deficient number, since it is larger than the sum of its proper divisors (26762155).

133810745 is an equidigital number, since it uses as much as digits as its factorization.

133810745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26762154.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 133810745 is about 11567.6594434656. The cubic root of 133810745 is about 511.4819704008.

The spelling of 133810745 in words is "one hundred thirty-three million, eight hundred ten thousand, seven hundred forty-five".