2173771349 has 8 divisors (see below), whose sum is σ = 2233379928. Its totient is φ = 2114208000.

The previous prime is 2173771273. The next prime is 2173771409. The reversal of 2173771349 is 9431773712.

It can be written as a sum of positive squares in 4 ways, for example, as 1370332324 + 803439025 = 37018^2 + 28345^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2173771349 - 2¹⁶ = 2173705813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173771049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101249 + ... + 120825.

It is an arithmetic number, because the mean of its divisors is an integer number (279172491).

Almost surely, 2^2173771349 is an apocalyptic number.

It is an amenable number.

2173771349 is a deficient number, since it is larger than the sum of its proper divisors (59608579).

2173771349 is a wasteful number, since it uses less digits than its factorization.

2173771349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22615.

The product of its digits is 222264, while the sum is 44.

The square root of 2173771349 is about 46623.7208832586. The cubic root of 2173771349 is about 1295.4021696304.

The spelling of 2173771349 in words is "two billion, one hundred seventy-three million, seven hundred seventy-one thousand, three hundred forty-nine".