153133709 has 4 divisors (see below), whose sum is σ = 153319260. Its totient is φ = 152948160.

The previous prime is 153133703. The next prime is 153133759. The reversal of 153133709 is 907331351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 907331351 = 269 ⋅3372979.

It can be written as a sum of positive squares in 2 ways, for example, as 117397225 + 35736484 = 10835^2 + 5978^2 .

It is a cyclic number.

It is not a de Polignac number, because 153133709 - 2⁴ = 153133693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153133703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91532 + ... + 93189.

It is an arithmetic number, because the mean of its divisors is an integer number (38329815).

Almost surely, 2^153133709 is an apocalyptic number.

It is an amenable number.

153133709 is a deficient number, since it is larger than the sum of its proper divisors (185551).

153133709 is an equidigital number, since it uses as much as digits as its factorization.

153133709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185550.

The product of its (nonzero) digits is 8505, while the sum is 32.

The square root of 153133709 is about 12374.7205625016. The cubic root of 153133709 is about 535.0038826981.

The spelling of 153133709 in words is "one hundred fifty-three million, one hundred thirty-three thousand, seven hundred nine".