700131609 has 24 divisors (see below), whose sum is σ = 1020649032. Its totient is φ = 462458880.

The previous prime is 700131577. The next prime is 700131611. The reversal of 700131609 is 906131007.

700131609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 44515584 + 655616025 = 6672^2 + 25605^2 .

It is not a de Polignac number, because 700131609 - 2⁵ = 700131577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (700131409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 905347 + ... + 906119.

It is an arithmetic number, because the mean of its divisors is an integer number (42527043).

Almost surely, 2^700131609 is an apocalyptic number.

It is an amenable number.

700131609 is a deficient number, since it is larger than the sum of its proper divisors (320517423).

700131609 is a wasteful number, since it uses less digits than its factorization.

700131609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 700131609 is about 26460.0001700680. Note that the first 3 decimals coincide. The cubic root of 700131609 is about 887.9596440450.

The spelling of 700131609 in words is "seven hundred million, one hundred thirty-one thousand, six hundred nine".