147033809 has 8 divisors (see below), whose sum is σ = 158697000. Its totient is φ = 135421056.

The previous prime is 147033781. The next prime is 147033811. The reversal of 147033809 is 908330741.

It can be written as a sum of positive squares in 4 ways, for example, as 65529025 + 81504784 = 8095^2 + 9028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 147033809 - 2¹² = 147029713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (147033889) 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 7 ways as a sum of consecutive naturals, for example, 6434 + ... + 18315.

It is an arithmetic number, because the mean of its divisors is an integer number (19837125).

Almost surely, 2^147033809 is an apocalyptic number.

It is an amenable number.

147033809 is a deficient number, since it is larger than the sum of its proper divisors (11663191).

147033809 is a wasteful number, since it uses less digits than its factorization.

147033809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25219.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 147033809 is about 12125.7498324846. The cubic root of 147033809 is about 527.8036663382.

The spelling of 147033809 in words is "one hundred forty-seven million, thirty-three thousand, eight hundred nine".