2201309 has 8 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 1991440.

The previous prime is 2201293. The next prime is 2201317. The reversal of 2201309 is 9031022.

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

It is not a de Polignac number, because 2201309 - 2⁴ = 2201293 is a prime.

It is a super-2 number, since 2×2201309² = 9691522626962, 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 (2201209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2882 + ... + 3564.

It is an arithmetic number, because the mean of its divisors is an integer number (301644).

2^2201309 is an apocalyptic number.

It is an amenable number.

2201309 is a deficient number, since it is larger than the sum of its proper divisors (211843).

2201309 is a wasteful number, since it uses less digits than its factorization.

2201309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2201309 is about 1483.6808956106. The cubic root of 2201309 is about 130.0849346345.

The spelling of 2201309 in words is "two million, two hundred one thousand, three hundred nine".