2205597139 has 4 divisors (see below), whose sum is σ = 2217144960. Its totient is φ = 2194049320.

The previous prime is 2205597127. The next prime is 2205597143. The reversal of 2205597139 is 9317955022.

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 2205597139 - 2⁷ = 2205597011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205597095 and 2205597104.

It is not an unprimeable number, because it can be changed into a prime (2205597109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5773624 + ... + 5774005.

It is an arithmetic number, because the mean of its divisors is an integer number (554286240).

Almost surely, 2^2205597139 is an apocalyptic number.

2205597139 is a deficient number, since it is larger than the sum of its proper divisors (11547821).

2205597139 is a wasteful number, since it uses less digits than its factorization.

2205597139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11547820.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 2205597139 is about 46963.7853989646. The cubic root of 2205597139 is about 1301.6934811474.

The spelling of 2205597139 in words is "two billion, two hundred five million, five hundred ninety-seven thousand, one hundred thirty-nine".