2173375049 has 4 divisors (see below), whose sum is σ = 2173481364. Its totient is φ = 2173268736.

The previous prime is 2173374961. The next prime is 2173375051. The reversal of 2173375049 is 9405733712.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 24403600 + 2148971449 = 4940^2 + 46357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2173375049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2173374997 and 2173375015.

It is not an unprimeable number, because it can be changed into a prime (2173375069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11732 + ... + 66965.

It is an arithmetic number, because the mean of its divisors is an integer number (543370341).

Almost surely, 2^2173375049 is an apocalyptic number.

It is an amenable number.

2173375049 is a deficient number, since it is larger than the sum of its proper divisors (106315).

2173375049 is an equidigital number, since it uses as much as digits as its factorization.

2173375049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106314.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 2173375049 is about 46619.4707069911. The cubic root of 2173375049 is about 1295.3234433068.

The spelling of 2173375049 in words is "two billion, one hundred seventy-three million, three hundred seventy-five thousand, forty-nine".