2009810601 has 12 divisors (see below), whose sum is σ = 3073828212. Its totient is φ = 1261057536.

The previous prime is 2009810581. The next prime is 2009810603. The reversal of 2009810601 is 1060189002.

It can be written as a sum of positive squares in 2 ways, for example, as 1620143001 + 389667600 = 40251^2 + 19740^2 .

It is not a de Polignac number, because 2009810601 - 2¹¹ = 2009808553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2009810603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6567856 + ... + 6568161.

It is an arithmetic number, because the mean of its divisors is an integer number (256152351).

Almost surely, 2^2009810601 is an apocalyptic number.

It is an amenable number.

2009810601 is a deficient number, since it is larger than the sum of its proper divisors (1064017611).

2009810601 is a wasteful number, since it uses less digits than its factorization.

2009810601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13136040 (or 13136037 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 2009810601 is about 44830.9112220575. The cubic root of 2009810601 is about 1261.9777876981.

Adding to 2009810601 its reverse (1060189002), we get a palindrome (3069999603).

The spelling of 2009810601 in words is "two billion, nine million, eight hundred ten thousand, six hundred one".