2209045247 has 4 divisors (see below), whose sum is σ = 2250725400. Its totient is φ = 2167365096.

The previous prime is 2209045211. The next prime is 2209045301. The reversal of 2209045247 is 7425409022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2209045247 - 2¹⁸ = 2208783103 is a prime.

It is a super-3 number, since 3×2209045247³ (a number of 29 digits) contains 333 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 (2209045547) 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, 20839997 + ... + 20840102.

It is an arithmetic number, because the mean of its divisors is an integer number (562681350).

Almost surely, 2^2209045247 is an apocalyptic number.

2209045247 is a deficient number, since it is larger than the sum of its proper divisors (41680153).

2209045247 is an equidigital number, since it uses as much as digits as its factorization.

2209045247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41680152.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 2209045247 is about 47000.4813485990. The cubic root of 2209045247 is about 1302.3714597161.

The spelling of 2209045247 in words is "two billion, two hundred nine million, forty-five thousand, two hundred forty-seven".