133340869 has 4 divisors (see below), whose sum is σ = 137938860. Its totient is φ = 128742880.

The previous prime is 133340863. The next prime is 133340881. The reversal of 133340869 is 968043331.

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 113422500 + 19918369 = 10650^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 133340869 - 2¹³ = 133332677 is a prime.

It is a super-2 number, since 2×133340869² = 35559574691350322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133340863) 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, 2298952 + ... + 2299009.

It is an arithmetic number, because the mean of its divisors is an integer number (34484715).

Almost surely, 2^133340869 is an apocalyptic number.

It is an amenable number.

133340869 is a deficient number, since it is larger than the sum of its proper divisors (4597991).

133340869 is an equidigital number, since it uses as much as digits as its factorization.

133340869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597990.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 133340869 is about 11547.3316831206. The cubic root of 133340869 is about 510.8825791685.

The spelling of 133340869 in words is "one hundred thirty-three million, three hundred forty thousand, eight hundred sixty-nine".